OO MODELING WITH UML 1 OBJECT-ORIENTED MODELING WITH UML SOFTWARE ENGINEERING SOFTWARE ENGINEERING

OO MODELING WITH UMLOO MODELING WITH UML1

OBJECT-ORIENTED MODELING WITH OBJECT-ORIENTED MODELING WITH UMLUML

OBJECT-ORIENTED MODELING WITH OBJECT-ORIENTED MODELING WITH UMLUML

SOFTWARE ENGINEERINGSOFTWARE ENGINEERINGSOFTWARE ENGINEERINGSOFTWARE ENGINEERING


OBJECTIVES LEARNING

1 Understand wh a t is th e UML a n d h ow it ca n b e u s e d to m sssss sss ssssss ss

2 Unde r s t a nd t he m os t e s s e n t ia l fe a tu re s of UML cla s s d ia g ra m s sss sssssssssssss

3 Know s ome mor e a d va n ce d fe a tu re s of th e UML a g g re g a t io n a n d con s t ra in t s

4 Appr e c i a t e t ha t t he UML i s a mode l i ng l a ngua ge a nd nos s

ssssssss sss s sssssssssss


OBJECT-ORIENTED MODELING WITH UML OUTLINEOBJECT-ORIENTED MODELING WITH UML OUTLINE

Overview of UML

Modeling and Abstractionndash OO modelingndash aggregation classification and generalization

Objects and Classesndash state amp behaviourndash attributes amp operations

Generalizationndash inheritancendash coverage

Links and Associationsndash multiplicityndash aggregation amp composition

2


WHAT IS UMLWHAT IS UML

a general purpose visual modeling language for systems

incorporates current best practice in modeling techniques and software engineering

software development methodology neutral

industry standard OO modeling language (but can also be used for non-OO systems)

basic premisebasic premise software systems can be modeled ascollections of collaborating objects

22


UML STRUCTUREUML STRUCTURE

Building blocksndash thingsndash relationshipsndash diagrams

Common mechanismsndash specificationsndash adornmentsndash common divisionsndash extensibility mechanisms

Architecturendash use-case view

ndash logical view

ndash process view

ndash implementation view

ndash deployment view

UML

Common mechanisms

ArchitectureBuilding blocks


OBJECT-ORIENTED MODELINGOBJECT-ORIENTED MODELING

Why modelsndash Models succinctly describe reality (ie they abstract reality)

show essential details filter out non-essential details

ndash This allows us to focus on the ldquobig picturerdquo of software

development ie programming-in-the-large

ndash and thus to better deal with the complexity of software

development with human limitations in understanding complex things

ndash resulting in better understanding of requirements cleaner designs

and more maintainable systems

23



Why objects

ndash Objects more accurately reflect the real world in a model thereby

reducing the ldquosemantic gaprdquo between reality and a model

ndash Objects localize changes to the model

23

We model reality as a number of interacting objects


OOMODELING amp LEVELS OF ABSTRACTION

Conceptual Level- We construct a problem domain modelndash We do not consider any aspects of implementation of objects

Focus on identifying concept(ldquoobjectsrdquo)

in the problem domain

Design Level - We construct a solution domain modelndash We consider interfaces of objects (but no internal aspects)

Focus on how objects interact in the solution domain

Implementation Level - We implement the solution domain modelndash We consider all details of objects (external and internal)

Focus on how to code objects

Modeling proceeds from the conceptual to implementation

Same OO concepts can be used at all levels to build models


- wings

ABSTRACTIONABSTRACTION

mental process of mental process of selecting someselecting some object characteristics and object characteristics and properties to model and properties to model and excluding othersexcluding others that are not relevant that are not relevant


landing gear abstraction is always for some purpose

many different abstractions of the same thing are possible

all abstractions are incomplete descriptions of reality

We do not need completeness just modeling adequacy

flies

232


TYPES OF ABSTRACTIONSTYPES OF ABSTRACTIONS

classification mdash group similar instances of objects

DBMSsoftware

Sybase Access Oracle

IS_MEMBER_OFrelationship

pick out common properties and ignore unique properties

Microsoftsoftware

Word PowerPoint


232


TYPES OF ABSTRACTIONS (contrsquod)TYPES OF ABSTRACTIONS (contrsquod)

aggregation mdash group dissimilar sets of objects

airplane

fuselage wing landing gear

IS_PART_OFrelationship

ignore differences among the parts and concentrateon the fact that they form the whole



generalization mdash group similar sets of objects

student

postgrad secondary undergrad

IS_Arelationship

note difference between classification and generalization

ndash classification ndash applied to individual instances of objects

ndash generalization ndash applied to sets of objects (classes)

superclasssupertype

subclasssubtype



student

undergrad

John Sam Tina

name student id

generalizationgeneralization

aggregationaggregation

classificationclassification

Note we can combine different types of abstraction when modeling


OBJECTOBJECT

The interface describes the operationswhich an object can perform

Fredrsquos SavingsAccount(a real-life object)

a concept abstraction or thing with a concept abstraction or thing with crisp crisp boundariesboundaries and and meaningmeaning which plays a role which plays a role with respect to a with respect to a requestrequest for an for an operationoperation


balance

deposit

withdraw

234 242


Balance

Deposit

Withdraw

OBJECT mdash PROPERTIESOBJECT mdash PROPERTIES

Fredrsquos SavingsAccount

accountNumber (integer value)

amount (money value)

state

balance

Balance Method (code)

deposit

Deposit Method (code)

withdraw

Withdraw Method (code)

payInterest

Pay-interest Method (code)

behaviour

identity


OBJECT PROVIDE INFORMATION HIDINGOBJECT PROVIDE INFORMATION HIDING

An objectrsquos interface encapsulates and abstracts an object thereby providing information hiding

An object has a visible ( public) interface and a hidden ( private) implementation

object 1

interface

response

request

user

request

a kind of abstraction that enforces a (clean) a kind of abstraction that enforces a (clean) separation between the separation between the external interfaceexternal interface

and the and the internal implementationinternal implementation of an objectof an object



response

object 2

interface

Objects help promote modular development


(OBJECT) CLASS(OBJECT) CLASS

a description of a a description of a group of objectsgroup of objects that have common that have commonndash statestate ndashndash relationshipsrelationshipsndash behaviourbehaviour ndashndash semanticssemantics


A class provides a template to create objects (a ldquofactoryrdquo for objects)

a class is a classifierclassifier an object is an instanceinstance

A good class should capture only one abstraction

It should one major theme

A class should be named using the vocabulary of the problem domainSo that it is meaningful and traceable

234 242


WHY CLASSESWHY CLASSES

234 242

conveniently describes a collection of objects abstraction

reduces complexity ndash makes systems easier to understand

write-once ndash common definition defined and stored once

specifies what values are acceptable in a given context

allows compilers (and people) to understand the programmerrsquos intention and to do certain types of error checking

Choosing appropriate classes is anChoosing appropriate classes is animportant design decisionimportant design decision

How are classes and modules related

ndash classes can be thought of asloosely coupled highly cohesive modules


CLASS mdash ATTRIBUTECLASS mdash ATTRIBUTE

each attribute has andash name (unique within a class but not across classes)

a description of a description of data valuesdata values held by objects in a class held by objects in a classa description of a description of data valuesdata values held by objects in a class held by objects in a class

ndash type (specifies the domain of values ndash string integer money etc ndash from which an attribute can take its values) continuous (eg salary) discrete (eg sex)

ndash visibility public (+) private (-) protected () package (~)

ndash initial value (optional)

ndash multiplicity (optional number of simultaneous valueseg telephone number default is exactly 1)

ndash changeability frozen addOnly no constraint (default)

base attribute versus derived attributendash eg birthdate versus age

234


ATTRIBUTES mdash UML NOTATIONATTRIBUTES mdash UML NOTATION

laquostereotyperaquo visibility name [multiplicity] typeExpression = initialValue propertyString

propertyString ndashgt a comma separated list of properties or constraints

only ldquonamerdquo is mandatory

Examples

+ size area = (100000) frozen

name string

telephone[02] string

telephone[1 34] string

- salary money gt0 lt1000000

You are not required to know this syntax


CLASS mdash OPERATIONCLASS mdash OPERATION

Company hire fire pay-dividends hellip

Course register waive-prerequisite hellip

An operation invoked by a message sent to an object

ndash operation signature name of operation (called selector) number and types of the arguments and type of the result value


ndash side effectsif the execution of an operation changes the state of an object (query operation no side effects)

a a functionfunction or or transformationtransformation that may that may be applied to or by objects in a classbe applied to or by objects in a class


234 242


CLASS mdash METHODCLASS mdash METHOD

polymorphic operation ndash an operation that can have several different methods

class operation

Account payInterest

Savings calculate interest on savings accountsChecking calculate interest on checking accounts

The The implementationimplementation of an operation for a class of an operation for a classThe The implementationimplementation of an operation for a class of an operation for a class

dynamic binding ndash choosing the method to execute for an operation based on the objectrsquos class

An operation is visible the method is hidden

ndash An operation is a classifier a method is an instance

242


OPERATION mdash UML NOTATIONOPERATION mdash UML NOTATION

laquostereotyperaquo visibility name (parameterList) returnType propertyString

parameterList ndashgt kind name typeExpression = defaultValue

kind--gt in - pass by value

out - pass by reference (no input value output value only)

inout - pass by reference (input and output value)


isQuery = true or false

isPolymorphic = true or false

concurrency = sequential - callers must coordinate to ensure only one call to an object may execute at one time

guarded - multiple calls to an object may occur simultaneously but only one is allowed to

execute at a time other calls are blocked

concurrent - multiple calls may occur simultaneously to an object and all execute concurrently

operation signature = name (parameterList) returnType



CLASS mdash UML GRAPHICAL NOTATIONCLASS mdash UML GRAPHICAL NOTATION

Account

-accoutNumber int+amount money-count int = 0

+create(aNumber int)-incrementCount( )+getCount( ) int+getNumber( ) int+balance( ) money+deposit(amount)+withdraw(amount)-payInterest( )

Visibility+ public- private protected~ package

Class nameattribute

compartment

operationcompartment

extracompartment


SCOPESCOPE

Attributes and operations normally have instance scope(ie they apply tooperate on a single object instance)

Sometimes it is useful to have attributes and operations that have class scope (ie they apply tooperate on an entire class of objects) attributes whose values are class determined ndash a counter object constructors ndash create new object instances

In UML notation such attributesoperations are underlined


WHY CLASSES FOR MODELING SYSTEMS

By sssssssssss a colle c t ion of ob je c t s a n d re p re s e n t in g t ss s ssssss sss com p le xity of d e ve lop in g a s ys te m is re

duced s ince it becomes eas ie r tondash understand the system We need to understand only the

classes not the individual objects

ndash specify the system Classes provide a place to define and

store common definitions only once

Choosing appropriate classes is an Choosing appropriate classes is an

IMPORTANT DESIGN DECISION IMPORTANT DESIGN DECISION

that helps promote modular development that helps promote modular development


GENERALIZATIONGENERALIZATION

a a relationshiprelationship between a between a classclass of kind of kinda a relationshiprelationship between a between a classclass of kind of kind

discriminator an attribute of enumeration type that indicates which property of a class is being abstracted by a generalization

242





242


GENERALIZATION SPECIALZATIONGENERALIZATION SPECIALZATION

Can also be applied bottom-up

242



242


a a relationshiprelationship between a between a classclass and one or more and one or more refined versionsrefined versionsa a relationshiprelationship between a between a classclass and one or more and one or more refined versionsrefined versions


Vehicle

Van Car Truck

Compact Midsize Fullsize

car-sizediscriminator

vehicle-type


specializationspecialization


subclass

superclass

superclass subclass

242


GENERALIZATION mdash INHERITANCEGENERALIZATION mdash INHERITANCE

We extract similarities (common attributes and operations) put them in a superclass and inherit them to subclass(es)

1048578 Properties and behaviour are only defined in one placeradic reduces redundancy of descriptionsradic promotes reusability of descriptionsradic simplifies modification of descriptions

An object of a superclass can be substituted

with an object of the subclass

the the assumption of propertiesassumption of properties by a by a subclasssubclass from its from its superclassessuperclasses



payInterest

interestRate

GENERALIZATION mdash INHERITANCE (contrsquod)GENERALIZATION mdash INHERITANCE (contrsquod)

Checking Savings

AccountaccountNumberamount

balancedepositwithdraw

serviceCharge

withdraw

CheckingSavings

conflict resolution byndash user-defined orderndash predefined orderndash redefine names

(attributes only)

A subclass mayndash add new properties

(attributes operations)

ndash override methods

Which withdraw method should CheckingSavings inherit

Multiple inheritance

Single inheritance


MULTIPLE INHERITANCE EXAMPLEMULTIPLE INHERITANCE EXAMPLE

Student Employee

Undergrad Postgrad

TA

Staff Faculty

UniversityMember

id

id id

id id id id

id id



id id id id

id id

Student Employee

Undergrad Postgrad

TA

Staff Faculty

idid



Vehicle

Car AmphibiousVehicle

Boat

LandVehiclesize

WaterVehiclesize

weight displacement

name conflict


GENERALIZATION mdash ABSTRACT CLASSGENERALIZATION mdash ABSTRACT CLASS

An abstract class used for modeling purposes as a container for definitions but no instances of the class are of interest

Checking Savings

Account

Note Operations may also be abstract no method specifiedShown in UML by using italics

a class that has a class that has no direct instancesno direct instancesa class that has a class that has no direct instancesno direct instances


Person

Fem

ale

Player

Mal

eGENERALIZATION mdash COVERAGEGENERALIZATION mdash COVERAGE

overlapping - a superclass object can be a member of more than one subclass

disjoint - a superclass object is a member of at most one subclass

Tennis Soccer

Player

overlapping

Male Female

Person

disjoint

Ten

nis

Soccer


UniversityStudent

Postgrad

Tree

GENERALIZATION mdash COVERAGE (contrsquod)GENERALIZATION mdash COVERAGE (contrsquod)

incomplete - some superclass object is not a member of any subclass

complete - all superclass objects are also members of some subclass

Oak BirchElm

Tree

incomplete

PostgradUndergrad

UniversityStudent

complete

Un

der

grad

Oak

Elm

Birch


Player


Tennis Soccer

Player

overlapping incomplete

UG PG

Course

overlapping complete



Ten

nis

Soccer

Course

UG

PG


UniversityStudentP

ostgrad


Oak BirchElm

Tree

disjoint incomplete

PostgradUndergrad

UniversityStudent

disjoint complete

disjoint complete

disjoint incomplete

Un

der

grad

TreeOak

Elm

Birch


The coverage of the generalization shown above is

ndash overlapping complete

ndash disjoint complete

ndash overlapping incomplete

ndash disjoint incomplete

QUESTIONQUESTION

Cash Debit-cardCredit-card

Payment

What is the policy of the organization







QUESTIONQUESTION


Individual Company

Customer


a physical or conceptual a physical or conceptual relationship between object instancesrelationship between object instances a physical or conceptual a physical or conceptual relationship between object instancesrelationship between object instances

LINKLINK

TeachesWorks-for Beat Wuumlthrich

Pam Drew

Fred Lochovsky

Gan Kok Wee

Dik Lee

Person

HKUST

Boeing

Organization

COMP 111

COMP 337

COMP 211

COMP 332

Course

links allow one object to send messages to another object

242


An association is a classifierclassifier a link is an instanceinstance

Works-forPerson Organization

ASSOCIATIONASSOCIATION

a a descriptiondescription of a of a group of linksgroup of links with with common semanticscommon semanticsa a descriptiondescription of a of a group of linksgroup of links with with common semanticscommon semantics

Person Course

Conceptually associations are inherently bi-directional

Teaches

Works-for

Can show navigability ofassociations(implies that the source object has a reference to the target object)

Can show readability ofassociations

classclassdiagramdiagram

W

orks-for

Organization

Teaches

242


ASSOCIATION (contrsquod)ASSOCIATION (contrsquod)

there can be several associations between the same two classes

Person UniversityAttended

Works-for

Fred bull bull U Toronto

PersonManagesMarried-to

or even with the same class

Attended

Works-for


ASSOCIATION mdash ASSOCIATION mdash DEGREEDEGREE

unary (reflexive)relates a class to itself Person

Manages

binaryrelates two classes

Person Course Teaches

ternaryrelates three classes

Project Language

Person n-ary - relates any number of classes

In practice the vast majority of associations are binary


ASSOCIATION mdash DEGREE (contrsquod)ASSOCIATION mdash DEGREE (contrsquod)

Customer Account

Bank

can this be expressed as two binary associationssuppose we know John has account 532 with HSBC

John has account 121 with BoCMary has account 993 with BoC

Customer BankAccountHas Is-with

Bank AccountCustomerIs-with Has

Customer AccountBankIs-with Has

X

X

radic



Project Language

Person

can this be expressed as two binary associationssuppose we know Mary works on the Accounting project using Cobol

Mary works on the CAD project using CJohn works on the Accounting project using C

Project PersonLanguageWith Uses

Person LanguageProjectWorks-on With

Project LanguagePersonWorks-on Uses

X

X

X


ASSOCIATION mdash MULTIPLICITYASSOCIATION mdash MULTIPLICITY

Instructor CourseTeaches 01

specifies restrictions on the number of objects in each class that may be related to objects in another class

For a given course how many instructors can teach it

For a given instructor how many courses can he teach

a real-world constraint

each course must be taught by one instructor but may have many

an instructor does not have to teach any course but may teach more than one course in a given semester

242 532


ASSOCIATION mdash MULTIPLICITY (contrsquod)ASSOCIATION mdash MULTIPLICITY (contrsquod)

minimal cardinality (min-card)

min-card(C1A) minimum number of links in which each object of C1 can participate in A

C1 C2

A cdab

min-card(C2A)min-card(C1A)

maximal cardinality (max-card)

max-card(C1A) maximum number of links in which each object of C1 can participate in A

max-card(C2A)max-card(C1A)

min-card(C1A) = 0 optional participation

min-card(C1A) gt 0 mandatory participation



special cardinalities

max-card = an unlimited upper bound ()

min-card = 1 and max-card = 1 can use 1 by itself

min-card = 0 and max-card = can use by itself

max-card(C1A) = 1 and max-card(C2A) = 1 one-to-one association (11)

max-card(C1A) = 1 and max-card(C2A) = one-to-many association (1N)

max-card(C1A) = and max-card(C2A) = many to many association (NM)


01


one-to-one association (11)

111

Country

China

Canada

USA

City

Beijing

Ottawa

New York

Washington

Capital-of

Country CityCapital-of


one-to-many association (1N)

1 110


Assigned-toEmployee

John

Alan

Bill

Larry

James

Employee DepartmentAssigned-to

Department

Sales

Marketing

Production


many to many association (NM)


Supplier PartSupplies

Supplier

E-com

SGH

Hi-tech

Lansing

Mach

Vtech

Part

85213

28175

33472

90231

Supplies


1045 15

QUESTIONQUESTION

Student CourseEnrolled-in

A student must enroll in at least one course and can enroll in at most five courses

A course must have at least ten students enrolled in it and cannot have more than forty-five students enrolled in it


N-ARY ASSOCIATION mdash MULTIPLICITYN-ARY ASSOCIATION mdash MULTIPLICITY

defined with respect to the defined with respect to the otherother n-1 ends n-1 endsdefined with respect to the defined with respect to the otherother n-1 ends n-1 ends

for each (course student)

01

for each (student professor)

for each (course professor)

Student

Course Professor

Registration

0 or 1 professor

many courses

many students

given a ternary association among classes (A B C) the multiplicity of the C end states how many C objects may appear in association with a particular pair of (A B) objects

a student will not take the same course from more than one professor but a student may take more than one course from one professor and a professor may teach more than one course


QUESTIONQUESTION

03

01

0 1 2 or 3 days

0 or 1 classrooms

many courses

for each (course classroom)

for each (course day)

for each (classroom day)

Classroom

Course Day

Meets


What is the most likely multiplicity of the following associations

QUESTIONQUESTION

ServiceOrder ServiceCallHas

ServiceAgent ServiceOrderTakes

ServiceOrder PartWaitsFor

Product PartComposedOf


EXAMPLE EXAMPLE CAR LOANSCAR LOANS

The classes shown have some attributes that are internal object identifiers(OIDs) that should not appear at the conceptual modeling level and should either be deleted or be replaced with relationships All such attributes conveniently have names ending in ID

Some further information about the application follows A person may work for any number of companies Persons companies or banks may own cars The car owner ID represents either the person company or bank who owns the car A car may have only one owner (person company or bank) A car loan given by a bank is for the purchase of a car A car may have multiple car loans

Prepare a class diagram in which the pointers are replaced with relationships Use associations and generalizations as necessary Show the most likely multiplicities for all associations and the final attributes for each class

Note Your final class diagram should contain no IDs


EXAMPLEEXAMPLE

Person

nameageemployer 1 IDemployer 2 IDemployer 3 IDperson IDaddress

Car

owner IDvehicle IDowner typemodelyear

Car loan

vehicle IDcustomer typecustomer IDaccount numberbank IDinterest ratecurrent balance

Company

namecompany ID

Bank

namebank ID



AGGREGATIONCOMPOSITION ASSOCIATIONAGGREGATIONCOMPOSITION ASSOCIATION

a component may exist independent of the aggregate object of which it is a part aggregation

DiskComputerHas

a special type of association in which there is a ldquopart-ofrdquo relationship between one class and another class

a component may not exist independent of the aggregate object of which it is a part composition

Course-offeringCourseHas

242


AGGREGATIONCOMPOSITION (contrsquod)AGGREGATIONCOMPOSITION (contrsquod)

sometimes it is not clear whether the parts should be related with or

CarChassis Engine

Doors FrameTransmission

Which aggregation association to use is a matter of how one interprets reality andor the requirements of the application


WHEN TO USE AGGREGATIONCOMPOSITIONWHEN TO USE AGGREGATIONCOMPOSITION

Would you use the phrase ldquopart ofrdquo to describe the association or name it ldquoHasrdquo (But be CAREFUL Not all ldquoHasrdquo associations are aggregations)

Are operations on the whole automatically applied to the part(s) composition

Are some attribute values propagated from the whole to all or some of the parts

Is there an intrinsic asymmetry to the association where one object class is subordinate to the other(s)

It is not wrong to use association rather than aggregation (When in doubt use association)


ASSOCIATION mdash ROLE NAMESASSOCIATION mdash ROLE NAMES

rolerole one end of an association one end of an associationrolerole one end of an association one end of an association

Person Company Works-foremployee employer

for binary associations there are two roles

242


ASSOCIATION mdash ROLE NAMES (contrsquod)ASSOCIATION mdash ROLE NAMES (contrsquod)

Boss

Worker

PersonManages

John

Sarah

Frank

Bill

Boss

Boss

Worker

It is necessary to use role names when an associationrelates objects from the same class



What about an attribute like grade

ASSOCIATION mdash ASSOCIATION CLASSASSOCIATION mdash ASSOCIATION CLASS

Student Course Enrolled-in

Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe

A+

B+

A-C

A

B

242


ASSOCIATION mdash ASSOCIATION CLASS (contrsquod)ASSOCIATION mdash ASSOCIATION CLASS (contrsquod)

Possibility 1 use many attributes for grade

Enrolled-inStudent Course

studentnamegrade1grade2


course-codenamegrade1grade2

(a) in Student

(b) in Course



Possibility 2 use a multi-valued attribute for grade


studentnamegrade [1]


course-codenamegrade [1]

(a) in Student

(b) in Course



Student Course

Enrolled-ingrade

Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe

Possibility 3 use an association class

B+

A-C

A

B

A+



When to associate an attribute with an association

Usually needed only for many to many relationships

Person Companynamehkidaddress

nameaddress

Works-for

salary


ASSOCIATION mdash CONSTRAINTSASSOCIATION mdash CONSTRAINTS

ordering

subset

1Person CommitteeMember-of

subset

Chair-of

general

Boolean expressioncdabC1 C2

A

1Country President

Has ordered


UML RELATIONSHIPSUML RELATIONSHIPS

association describes links among object instances(only relationship that relates object instances)

generalization relates a more general class (superclass) to a more specific kind of the general class (subclass)

dependency relates classes whose behaviour or implementation affect other classes

flow relates two versions of an object at successive times

usage shows that one class requires another class for its correct functioning

realization relates a specification to its implementation(eg an interface to the classes that implement it)


STEREOTYPESTEREOTYPE

allows the object model to be dynamically extended

Example we can define different kinds of classes that are useful for modeling

laquoboundaryraquo

OrderFormlaquoentityraquo

BankAccountlaquocontrolraquo

PenTracker

a a new classnew class of modeling element which is a of modeling element which is a subclasssubclass of an existing modeling element of an existing modeling element


special icons can be used for each stereotype

OrderForm BankAccountPenTracker


CLASS DIAGRAM EXAMPLECLASS DIAGRAM EXAMPLE

Invoiceamountdatedue date

Order

datedelivery address

Payable

Account

balanceowner

Itemdescriptionpicturecost

VIP

expiry date

1

1

1

1

1Has buy invoice

Has sell invoice

incomplete

buyer

seller



Client

Successor

GUIEventHandler

EventHandler

- currentEventId integer- source string

handleRequest() void


EXAMPLEEXAMPLE

Construct a class diagram for the classes listed below Use association aggregation and generalization relationships as necessary Show multiplicity for all relationships and role names where necessary

file system drive file directory

sector ASCII file disk executable file

track


SUMMARY mdash OBJECT-ORIENTED MODELINGSUMMARY mdash OBJECT-ORIENTED MODELING

UML mdash Object Model

Class nameattributecompartment


GradUndergrad

Student

complete disjoint

Course-offeringCourse

151045Student CourseEnrolled-in

classifier instance class object

attribute valueoperation method

association link


OBJECTIVES LEARNING

1 Understand wh a t is th e UML a n d h ow it ca n b e u s e d to m sssss sss ssssss ss

2 Unde r s t a nd t he m os t e s s e n t ia l fe a tu re s of UML cla s s d ia g ra m s sss sssssssssssss

3 Know s ome mor e a d va n ce d fe a tu re s of th e UML a g g re g a t io n a n d con s t ra in t s

4 Appr e c i a t e t ha t t he UML i s a mode l i ng l a ngua ge a nd nos s

ssssssss sss s sssssssssss



Overview of UML





2








22






ndash logical view

ndash process view



UML

Common mechanisms












23



Why objects




23














- wings








flies

232




DBMSsoftware




Microsoftsoftware

Word PowerPoint


232




airplane







student


IS_Arelationship




superclasssupertype

subclasssubtype



student

undergrad

John Sam Tina

name student id






OBJECTOBJECT





balance

deposit

withdraw

234 242


Balance

Deposit

Withdraw





state

balance


deposit


withdraw


payInterest


behaviour

identity





object 1

interface

response

request

user

request





response

object 2

interface











234 242



234 242



















234






Examples


name string















234 242




class operation

Account payInterest






242



















Account




Class nameattribute

compartment


extracompartment


SCOPESCOPE


















242





242




242



242




Vehicle

Van Car Truck



vehicle-type




subclass

superclass

superclass subclass

242










payInterest

interestRate


Checking Savings



serviceCharge

withdraw

CheckingSavings


(attributes only)






Single inheritance



Student Employee

Undergrad Postgrad

TA

Staff Faculty

UniversityMember

id

id id

id id id id

id id



id id id id

id id

Student Employee

Undergrad Postgrad

TA

Staff Faculty

idid



Vehicle


Boat

LandVehiclesize

WaterVehiclesize

weight displacement

name conflict




Checking Savings

Account




Person

Fem

ale

Player

Mal




Tennis Soccer

Player

overlapping

Male Female

Person

disjoint

Ten

nis

Soccer


UniversityStudent

Postgrad

Tree




Oak BirchElm

Tree

incomplete

PostgradUndergrad

UniversityStudent

complete

Un

der

grad

Oak

Elm

Birch


Player


Tennis Soccer

Player


UG PG

Course




Ten

nis

Soccer

Course

UG

PG


UniversityStudentP

ostgrad


Oak BirchElm

Tree

disjoint incomplete

PostgradUndergrad

UniversityStudent

disjoint complete

disjoint complete

disjoint incomplete

Un

der

grad

TreeOak

Elm

Birch







QUESTIONQUESTION


Payment








QUESTIONQUESTION


Individual Company

Customer



LINKLINK


Pam Drew

Fred Lochovsky

Gan Kok Wee

Dik Lee

Person

HKUST

Boeing

Organization

COMP 111

COMP 337

COMP 211

COMP 332

Course


242






Person Course


Teaches

Works-for




W

orks-for

Organization

Teaches

242





Works-for




Attended

Works-for




Manages




Project Language





Customer Account

Bank






X

X

radic



Project Language

Person






X

X

X










242 532





C1 C2

A cdab

















01



111

Country

China

Canada

USA

City

Beijing

Ottawa

New York

Washington

Capital-of




1 110


Assigned-toEmployee

John

Alan

Bill

Larry

James


Department

Sales

Marketing

Production





Supplier

E-com

SGH

Hi-tech

Lansing

Mach

Vtech

Part

85213

28175

33472

90231

Supplies


1045 15

QUESTIONQUESTION








01



Student

Course Professor

Registration

0 or 1 professor

many courses

many students




QUESTIONQUESTION

03

01

0 1 2 or 3 days

0 or 1 classrooms

many courses




Classroom

Course Day

Meets



QUESTIONQUESTION












EXAMPLEEXAMPLE

Person


Car


Car loan


Company

namecompany ID

Bank

namebank ID





DiskComputerHas




242




CarChassis Engine















242



Boss

Worker

PersonManages

John

Sarah

Frank

Bill

Boss

Boss

Worker







Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe

A+

B+

A-C

A

B

242








(a) in Student

(b) in Course








(a) in Student

(b) in Course



Student Course

Enrolled-ingrade

Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe


B+

A-C

A

B

A+






nameaddress

Works-for

salary



ordering

subset


subset

Chair-of

general


A

1Country President

Has ordered













laquoboundaryraquo



PenTracker








Order


Payable

Account

balanceowner


VIP

expiry date

1

1

1

1

1Has buy invoice

Has sell invoice

incomplete

buyer

seller



Client

Successor

GUIEventHandler

EventHandler




EXAMPLEEXAMPLE




track






GradUndergrad

Student

complete disjoint





association link



Overview of UML





2








22






ndash logical view

ndash process view



UML

Common mechanisms












23



Why objects




23














- wings








flies

232




DBMSsoftware




Microsoftsoftware

Word PowerPoint


232




airplane







student


IS_Arelationship




superclasssupertype

subclasssubtype



student

undergrad

John Sam Tina

name student id






OBJECTOBJECT





balance

deposit

withdraw

234 242


Balance

Deposit

Withdraw





state

balance


deposit


withdraw


payInterest


behaviour

identity





object 1

interface

response

request

user

request





response

object 2

interface











234 242



234 242



















234






Examples


name string















234 242




class operation

Account payInterest






242



















Account




Class nameattribute

compartment


extracompartment


SCOPESCOPE


















242





242




242



242




Vehicle

Van Car Truck



vehicle-type




subclass

superclass

superclass subclass

242










payInterest

interestRate


Checking Savings



serviceCharge

withdraw

CheckingSavings


(attributes only)






Single inheritance



Student Employee

Undergrad Postgrad

TA

Staff Faculty

UniversityMember

id

id id

id id id id

id id



id id id id

id id

Student Employee

Undergrad Postgrad

TA

Staff Faculty

idid



Vehicle


Boat

LandVehiclesize

WaterVehiclesize

weight displacement

name conflict




Checking Savings

Account




Person

Fem

ale

Player

Mal




Tennis Soccer

Player

overlapping

Male Female

Person

disjoint

Ten

nis

Soccer


UniversityStudent

Postgrad

Tree




Oak BirchElm

Tree

incomplete

PostgradUndergrad

UniversityStudent

complete

Un

der

grad

Oak

Elm

Birch


Player


Tennis Soccer

Player


UG PG

Course




Ten

nis

Soccer

Course

UG

PG


UniversityStudentP

ostgrad


Oak BirchElm

Tree

disjoint incomplete

PostgradUndergrad

UniversityStudent

disjoint complete

disjoint complete

disjoint incomplete

Un

der

grad

TreeOak

Elm

Birch







QUESTIONQUESTION


Payment








QUESTIONQUESTION


Individual Company

Customer



LINKLINK


Pam Drew

Fred Lochovsky

Gan Kok Wee

Dik Lee

Person

HKUST

Boeing

Organization

COMP 111

COMP 337

COMP 211

COMP 332

Course


242






Person Course


Teaches

Works-for




W

orks-for

Organization

Teaches

242





Works-for




Attended

Works-for




Manages




Project Language





Customer Account

Bank






X

X

radic



Project Language

Person






X

X

X










242 532





C1 C2

A cdab

















01



111

Country

China

Canada

USA

City

Beijing

Ottawa

New York

Washington

Capital-of




1 110


Assigned-toEmployee

John

Alan

Bill

Larry

James


Department

Sales

Marketing

Production





Supplier

E-com

SGH

Hi-tech

Lansing

Mach

Vtech

Part

85213

28175

33472

90231

Supplies


1045 15

QUESTIONQUESTION








01



Student

Course Professor

Registration

0 or 1 professor

many courses

many students




QUESTIONQUESTION

03

01

0 1 2 or 3 days

0 or 1 classrooms

many courses




Classroom

Course Day

Meets



QUESTIONQUESTION












EXAMPLEEXAMPLE

Person


Car


Car loan


Company

namecompany ID

Bank

namebank ID





DiskComputerHas




242




CarChassis Engine















242



Boss

Worker

PersonManages

John

Sarah

Frank

Bill

Boss

Boss

Worker







Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe

A+

B+

A-C

A

B

242








(a) in Student

(b) in Course








(a) in Student

(b) in Course



Student Course

Enrolled-ingrade

Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe


B+

A-C

A

B

A+






nameaddress

Works-for

salary



ordering

subset


subset

Chair-of

general


A

1Country President

Has ordered













laquoboundaryraquo



PenTracker








Order


Payable

Account

balanceowner


VIP

expiry date

1

1

1

1

1Has buy invoice

Has sell invoice

incomplete

buyer

seller



Client

Successor

GUIEventHandler

EventHandler




EXAMPLEEXAMPLE




track






GradUndergrad

Student

complete disjoint





association link








22






ndash logical view

ndash process view



UML

Common mechanisms












23



Why objects




23














- wings








flies

232




DBMSsoftware




Microsoftsoftware

Word PowerPoint


232




airplane







student


IS_Arelationship




superclasssupertype

subclasssubtype



student

undergrad

John Sam Tina

name student id






OBJECTOBJECT





balance

deposit

withdraw

234 242


Balance

Deposit

Withdraw





state

balance


deposit


withdraw


payInterest


behaviour

identity





object 1

interface

response

request

user

request





response

object 2

interface











234 242



234 242



















234






Examples


name string















234 242




class operation

Account payInterest






242



















Account




Class nameattribute

compartment


extracompartment


SCOPESCOPE


















242





242




242



242




Vehicle

Van Car Truck



vehicle-type




subclass

superclass

superclass subclass

242










payInterest

interestRate


Checking Savings



serviceCharge

withdraw

CheckingSavings


(attributes only)






Single inheritance



Student Employee

Undergrad Postgrad

TA

Staff Faculty

UniversityMember

id

id id

id id id id

id id



id id id id

id id

Student Employee

Undergrad Postgrad

TA

Staff Faculty

idid



Vehicle


Boat

LandVehiclesize

WaterVehiclesize

weight displacement

name conflict




Checking Savings

Account




Person

Fem

ale

Player

Mal




Tennis Soccer

Player

overlapping

Male Female

Person

disjoint

Ten

nis

Soccer


UniversityStudent

Postgrad

Tree




Oak BirchElm

Tree

incomplete

PostgradUndergrad

UniversityStudent

complete

Un

der

grad

Oak

Elm

Birch


Player


Tennis Soccer

Player


UG PG

Course




Ten

nis

Soccer

Course

UG

PG


UniversityStudentP

ostgrad


Oak BirchElm

Tree

disjoint incomplete

PostgradUndergrad

UniversityStudent

disjoint complete

disjoint complete

disjoint incomplete

Un

der

grad

TreeOak

Elm

Birch







QUESTIONQUESTION


Payment








QUESTIONQUESTION


Individual Company

Customer



LINKLINK


Pam Drew

Fred Lochovsky

Gan Kok Wee

Dik Lee

Person

HKUST

Boeing

Organization

COMP 111

COMP 337

COMP 211

COMP 332

Course


242






Person Course


Teaches

Works-for




W

orks-for

Organization

Teaches

242





Works-for




Attended

Works-for




Manages




Project Language





Customer Account

Bank






X

X

radic



Project Language

Person






X

X

X










242 532





C1 C2

A cdab

















01



111

Country

China

Canada

USA

City

Beijing

Ottawa

New York

Washington

Capital-of




1 110


Assigned-toEmployee

John

Alan

Bill

Larry

James


Department

Sales

Marketing

Production





Supplier

E-com

SGH

Hi-tech

Lansing

Mach

Vtech

Part

85213

28175

33472

90231

Supplies


1045 15

QUESTIONQUESTION








01



Student

Course Professor

Registration

0 or 1 professor

many courses

many students




QUESTIONQUESTION

03

01

0 1 2 or 3 days

0 or 1 classrooms

many courses




Classroom

Course Day

Meets



QUESTIONQUESTION












EXAMPLEEXAMPLE

Person


Car


Car loan


Company

namecompany ID

Bank

namebank ID





DiskComputerHas




242




CarChassis Engine















242



Boss

Worker

PersonManages

John

Sarah

Frank

Bill

Boss

Boss

Worker







Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe

A+

B+

A-C

A

B

242








(a) in Student

(b) in Course








(a) in Student

(b) in Course



Student Course

Enrolled-ingrade

Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe


B+

A-C

A

B

A+






nameaddress

Works-for

salary



ordering

subset


subset

Chair-of

general


A

1Country President

Has ordered













laquoboundaryraquo



PenTracker








Order


Payable

Account

balanceowner


VIP

expiry date

1

1

1

1

1Has buy invoice

Has sell invoice

incomplete

buyer

seller



Client

Successor

GUIEventHandler

EventHandler




EXAMPLEEXAMPLE




track






GradUndergrad

Student

complete disjoint





association link






ndash logical view

ndash process view



UML

Common mechanisms












23



Why objects




23














- wings








flies

232




DBMSsoftware




Microsoftsoftware

Word PowerPoint


232




airplane







student


IS_Arelationship




superclasssupertype

subclasssubtype



student

undergrad

John Sam Tina

name student id






OBJECTOBJECT





balance

deposit

withdraw

234 242


Balance

Deposit

Withdraw





state

balance


deposit


withdraw


payInterest


behaviour

identity





object 1

interface

response

request

user

request





response

object 2

interface











234 242



234 242



















234






Examples


name string















234 242




class operation

Account payInterest






242



















Account




Class nameattribute

compartment


extracompartment


SCOPESCOPE


















242





242




242



242




Vehicle

Van Car Truck



vehicle-type




subclass

superclass

superclass subclass

242










payInterest

interestRate


Checking Savings



serviceCharge

withdraw

CheckingSavings


(attributes only)






Single inheritance



Student Employee

Undergrad Postgrad

TA

Staff Faculty

UniversityMember

id

id id

id id id id

id id



id id id id

id id

Student Employee

Undergrad Postgrad

TA

Staff Faculty

idid



Vehicle


Boat

LandVehiclesize

WaterVehiclesize

weight displacement

name conflict




Checking Savings

Account




Person

Fem

ale

Player

Mal




Tennis Soccer

Player

overlapping

Male Female

Person

disjoint

Ten

nis

Soccer


UniversityStudent

Postgrad

Tree




Oak BirchElm

Tree

incomplete

PostgradUndergrad

UniversityStudent

complete

Un

der

grad

Oak

Elm

Birch


Player


Tennis Soccer

Player


UG PG

Course




Ten

nis

Soccer

Course

UG

PG


UniversityStudentP

ostgrad


Oak BirchElm

Tree

disjoint incomplete

PostgradUndergrad

UniversityStudent

disjoint complete

disjoint complete

disjoint incomplete

Un

der

grad

TreeOak

Elm

Birch







QUESTIONQUESTION


Payment








QUESTIONQUESTION


Individual Company

Customer



LINKLINK


Pam Drew

Fred Lochovsky

Gan Kok Wee

Dik Lee

Person

HKUST

Boeing

Organization

COMP 111

COMP 337

COMP 211

COMP 332

Course


242






Person Course


Teaches

Works-for




W

orks-for

Organization

Teaches

242





Works-for




Attended

Works-for




Manages




Project Language





Customer Account

Bank






X

X

radic



Project Language

Person






X

X

X










242 532





C1 C2

A cdab

















01



111

Country

China

Canada

USA

City

Beijing

Ottawa

New York

Washington

Capital-of




1 110


Assigned-toEmployee

John

Alan

Bill

Larry

James


Department

Sales

Marketing

Production





Supplier

E-com

SGH

Hi-tech

Lansing

Mach

Vtech

Part

85213

28175

33472

90231

Supplies


1045 15

QUESTIONQUESTION








01



Student

Course Professor

Registration

0 or 1 professor

many courses

many students




QUESTIONQUESTION

03

01

0 1 2 or 3 days

0 or 1 classrooms

many courses




Classroom

Course Day

Meets



QUESTIONQUESTION












EXAMPLEEXAMPLE

Person


Car


Car loan


Company

namecompany ID

Bank

namebank ID





DiskComputerHas




242




CarChassis Engine















242



Boss

Worker

PersonManages

John

Sarah

Frank

Bill

Boss

Boss

Worker







Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe

A+

B+

A-C

A

B

242








(a) in Student

(b) in Course








(a) in Student

(b) in Course



Student Course

Enrolled-ingrade

Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe


B+

A-C

A

B

A+






nameaddress

Works-for

salary



ordering

subset


subset

Chair-of

general


A

1Country President

Has ordered













laquoboundaryraquo



PenTracker








Order


Payable

Account

balanceowner


VIP

expiry date

1

1

1

1

1Has buy invoice

Has sell invoice

incomplete

buyer

seller



Client

Successor

GUIEventHandler

EventHandler




EXAMPLEEXAMPLE




track






GradUndergrad

Student

complete disjoint





association link











23



Why objects




23














- wings








flies

232




DBMSsoftware




Microsoftsoftware

Word PowerPoint


232




airplane







student


IS_Arelationship




superclasssupertype

subclasssubtype



student

undergrad

John Sam Tina

name student id






OBJECTOBJECT





balance

deposit

withdraw

234 242


Balance

Deposit

Withdraw





state

balance


deposit


withdraw


payInterest


behaviour

identity





object 1

interface

response

request

user

request





response

object 2

interface











234 242



234 242



















234






Examples


name string















234 242




class operation

Account payInterest






242



















Account




Class nameattribute

compartment


extracompartment


SCOPESCOPE


















242





242




242



242




Vehicle

Van Car Truck



vehicle-type




subclass

superclass

superclass subclass

242










payInterest

interestRate


Checking Savings



serviceCharge

withdraw

CheckingSavings


(attributes only)






Single inheritance



Student Employee

Undergrad Postgrad

TA

Staff Faculty

UniversityMember

id

id id

id id id id

id id



id id id id

id id

Student Employee

Undergrad Postgrad

TA

Staff Faculty

idid



Vehicle


Boat

LandVehiclesize

WaterVehiclesize

weight displacement

name conflict




Checking Savings

Account




Person

Fem

ale

Player

Mal




Tennis Soccer

Player

overlapping

Male Female

Person

disjoint

Ten

nis

Soccer


UniversityStudent

Postgrad

Tree




Oak BirchElm

Tree

incomplete

PostgradUndergrad

UniversityStudent

complete

Un

der

grad

Oak

Elm

Birch


Player


Tennis Soccer

Player


UG PG

Course




Ten

nis

Soccer

Course

UG

PG


UniversityStudentP

ostgrad


Oak BirchElm

Tree

disjoint incomplete

PostgradUndergrad

UniversityStudent

disjoint complete

disjoint complete

disjoint incomplete

Un

der

grad

TreeOak

Elm

Birch







QUESTIONQUESTION


Payment








QUESTIONQUESTION


Individual Company

Customer



LINKLINK


Pam Drew

Fred Lochovsky

Gan Kok Wee

Dik Lee

Person

HKUST

Boeing

Organization

COMP 111

COMP 337

COMP 211

COMP 332

Course


242






Person Course


Teaches

Works-for




W

orks-for

Organization

Teaches

242





Works-for




Attended

Works-for




Manages




Project Language





Customer Account

Bank






X

X

radic



Project Language

Person






X

X

X










242 532





C1 C2

A cdab

















01



111

Country

China

Canada

USA

City

Beijing

Ottawa

New York

Washington

Capital-of




1 110


Assigned-toEmployee

John

Alan

Bill

Larry

James


Department

Sales

Marketing

Production





Supplier

E-com

SGH

Hi-tech

Lansing

Mach

Vtech

Part

85213

28175

33472

90231

Supplies


1045 15

QUESTIONQUESTION








01



Student

Course Professor

Registration

0 or 1 professor

many courses

many students




QUESTIONQUESTION

03

01

0 1 2 or 3 days

0 or 1 classrooms

many courses




Classroom

Course Day

Meets



QUESTIONQUESTION












EXAMPLEEXAMPLE

Person


Car


Car loan


Company

namecompany ID

Bank

namebank ID





DiskComputerHas




242




CarChassis Engine















242



Boss

Worker

PersonManages

John

Sarah

Frank

Bill

Boss

Boss

Worker







Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe

A+

B+

A-C

A

B

242








(a) in Student

(b) in Course








(a) in Student

(b) in Course



Student Course

Enrolled-ingrade

Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe


B+

A-C

A

B

A+






nameaddress

Works-for

salary



ordering

subset


subset

Chair-of

general


A

1Country President

Has ordered













laquoboundaryraquo



PenTracker








Order


Payable

Account

balanceowner


VIP

expiry date

1

1

1

1

1Has buy invoice

Has sell invoice

incomplete

buyer

seller



Client

Successor

GUIEventHandler

EventHandler




EXAMPLEEXAMPLE




track






GradUndergrad

Student

complete disjoint





association link



Why objects




23














- wings








flies

232




DBMSsoftware




Microsoftsoftware

Word PowerPoint


232




airplane







student


IS_Arelationship




superclasssupertype

subclasssubtype



student

undergrad

John Sam Tina

name student id






OBJECTOBJECT





balance

deposit

withdraw

234 242


Balance

Deposit

Withdraw





state

balance


deposit


withdraw


payInterest


behaviour

identity





object 1

interface

response

request

user

request





response

object 2

interface











234 242



234 242



















234






Examples


name string















234 242




class operation

Account payInterest






242



















Account




Class nameattribute

compartment


extracompartment


SCOPESCOPE


















242





242




242



242




Vehicle

Van Car Truck



vehicle-type




subclass

superclass

superclass subclass

242










payInterest

interestRate


Checking Savings



serviceCharge

withdraw

CheckingSavings


(attributes only)






Single inheritance



Student Employee

Undergrad Postgrad

TA

Staff Faculty

UniversityMember

id

id id

id id id id

id id



id id id id

id id

Student Employee

Undergrad Postgrad

TA

Staff Faculty

idid



Vehicle


Boat

LandVehiclesize

WaterVehiclesize

weight displacement

name conflict




Checking Savings

Account




Person

Fem

ale

Player

Mal




Tennis Soccer

Player

overlapping

Male Female

Person

disjoint

Ten

nis

Soccer


UniversityStudent

Postgrad

Tree




Oak BirchElm

Tree

incomplete

PostgradUndergrad

UniversityStudent

complete

Un

der

grad

Oak

Elm

Birch


Player


Tennis Soccer

Player


UG PG

Course




Ten

nis

Soccer

Course

UG

PG


UniversityStudentP

ostgrad


Oak BirchElm

Tree

disjoint incomplete

PostgradUndergrad

UniversityStudent

disjoint complete

disjoint complete

disjoint incomplete

Un

der

grad

TreeOak

Elm

Birch







QUESTIONQUESTION


Payment








QUESTIONQUESTION


Individual Company

Customer



LINKLINK


Pam Drew

Fred Lochovsky

Gan Kok Wee

Dik Lee

Person

HKUST

Boeing

Organization

COMP 111

COMP 337

COMP 211

COMP 332

Course


242






Person Course


Teaches

Works-for




W

orks-for

Organization

Teaches

242





Works-for




Attended

Works-for




Manages




Project Language





Customer Account

Bank






X

X

radic



Project Language

Person






X

X

X










242 532





C1 C2

A cdab

















01



111

Country

China

Canada

USA

City

Beijing

Ottawa

New York

Washington

Capital-of




1 110


Assigned-toEmployee

John

Alan

Bill

Larry

James


Department

Sales

Marketing

Production





Supplier

E-com

SGH

Hi-tech

Lansing

Mach

Vtech

Part

85213

28175

33472

90231

Supplies


1045 15

QUESTIONQUESTION








01



Student

Course Professor

Registration

0 or 1 professor

many courses

many students




QUESTIONQUESTION

03

01

0 1 2 or 3 days

0 or 1 classrooms

many courses




Classroom

Course Day

Meets



QUESTIONQUESTION












EXAMPLEEXAMPLE

Person


Car


Car loan


Company

namecompany ID

Bank

namebank ID





DiskComputerHas




242




CarChassis Engine















242



Boss

Worker

PersonManages

John

Sarah

Frank

Bill

Boss

Boss

Worker







Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe

A+

B+

A-C

A

B

242








(a) in Student

(b) in Course








(a) in Student

(b) in Course



Student Course

Enrolled-ingrade

Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe


B+

A-C

A

B

A+






nameaddress

Works-for

salary



ordering

subset


subset

Chair-of

general


A

1Country President

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PenTracker








Order


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balanceowner


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1

1

1

1

1Has buy invoice

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buyer

seller



Client

Successor

GUIEventHandler

EventHandler




EXAMPLEEXAMPLE




track






GradUndergrad

Student

complete disjoint





association link













- wings








flies

232




DBMSsoftware




Microsoftsoftware

Word PowerPoint


232




airplane







student


IS_Arelationship




superclasssupertype

subclasssubtype



student

undergrad

John Sam Tina

name student id






OBJECTOBJECT





balance

deposit

withdraw

234 242


Balance

Deposit

Withdraw





state

balance


deposit


withdraw


payInterest


behaviour

identity





object 1

interface

response

request

user

request





response

object 2

interface











234 242



234 242



















234






Examples


name string















234 242




class operation

Account payInterest






242



















Account




Class nameattribute

compartment


extracompartment


SCOPESCOPE


















242





242




242



242




Vehicle

Van Car Truck



vehicle-type




subclass

superclass

superclass subclass

242










payInterest

interestRate


Checking Savings



serviceCharge

withdraw

CheckingSavings


(attributes only)






Single inheritance



Student Employee

Undergrad Postgrad

TA

Staff Faculty

UniversityMember

id

id id

id id id id

id id



id id id id

id id

Student Employee

Undergrad Postgrad

TA

Staff Faculty

idid



Vehicle


Boat

LandVehiclesize

WaterVehiclesize

weight displacement

name conflict




Checking Savings

Account




Person

Fem

ale

Player

Mal




Tennis Soccer

Player

overlapping

Male Female

Person

disjoint

Ten

nis

Soccer


UniversityStudent

Postgrad

Tree




Oak BirchElm

Tree

incomplete

PostgradUndergrad

UniversityStudent

complete

Un

der

grad

Oak

Elm

Birch


Player


Tennis Soccer

Player


UG PG

Course




Ten

nis

Soccer

Course

UG

PG


UniversityStudentP

ostgrad


Oak BirchElm

Tree

disjoint incomplete

PostgradUndergrad

UniversityStudent

disjoint complete

disjoint complete

disjoint incomplete

Un

der

grad

TreeOak

Elm

Birch







QUESTIONQUESTION


Payment








QUESTIONQUESTION


Individual Company

Customer



LINKLINK


Pam Drew

Fred Lochovsky

Gan Kok Wee

Dik Lee

Person

HKUST

Boeing

Organization

COMP 111

COMP 337

COMP 211

COMP 332

Course


242






Person Course


Teaches

Works-for




W

orks-for

Organization

Teaches

242





Works-for




Attended

Works-for




Manages




Project Language





Customer Account

Bank






X

X

radic



Project Language

Person






X

X

X










242 532





C1 C2

A cdab

















01



111

Country

China

Canada

USA

City

Beijing

Ottawa

New York

Washington

Capital-of




1 110


Assigned-toEmployee

John

Alan

Bill

Larry

James


Department

Sales

Marketing

Production





Supplier

E-com

SGH

Hi-tech

Lansing

Mach

Vtech

Part

85213

28175

33472

90231

Supplies


1045 15

QUESTIONQUESTION








01



Student

Course Professor

Registration

0 or 1 professor

many courses

many students




QUESTIONQUESTION

03

01

0 1 2 or 3 days

0 or 1 classrooms

many courses




Classroom

Course Day

Meets



QUESTIONQUESTION












EXAMPLEEXAMPLE

Person


Car


Car loan


Company

namecompany ID

Bank

namebank ID





DiskComputerHas




242




CarChassis Engine















242



Boss

Worker

PersonManages

John

Sarah

Frank

Bill

Boss

Boss

Worker







Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe

A+

B+

A-C

A

B

242








(a) in Student

(b) in Course








(a) in Student

(b) in Course



Student Course

Enrolled-ingrade

Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe


B+

A-C

A

B

A+






nameaddress

Works-for

salary



ordering

subset


subset

Chair-of

general


A

1Country President

Has ordered













laquoboundaryraquo



PenTracker








Order


Payable

Account

balanceowner


VIP

expiry date

1

1

1

1

1Has buy invoice

Has sell invoice

incomplete

buyer

seller



Client

Successor

GUIEventHandler

EventHandler




EXAMPLEEXAMPLE




track






GradUndergrad

Student

complete disjoint





association link


- wings








flies

232




DBMSsoftware




Microsoftsoftware

Word PowerPoint


232




airplane







student


IS_Arelationship




superclasssupertype

subclasssubtype



student

undergrad

John Sam Tina

name student id






OBJECTOBJECT





balance

deposit

withdraw

234 242


Balance

Deposit

Withdraw





state

balance


deposit


withdraw


payInterest


behaviour

identity





object 1

interface

response

request

user

request





response

object 2

interface











234 242



234 242



















234






Examples


name string















234 242




class operation

Account payInterest






242



















Account




Class nameattribute

compartment


extracompartment


SCOPESCOPE


















242





242




242



242




Vehicle

Van Car Truck



vehicle-type




subclass

superclass

superclass subclass

242










payInterest

interestRate


Checking Savings



serviceCharge

withdraw

CheckingSavings


(attributes only)






Single inheritance



Student Employee

Undergrad Postgrad

TA

Staff Faculty

UniversityMember

id

id id

id id id id

id id



id id id id

id id

Student Employee

Undergrad Postgrad

TA

Staff Faculty

idid



Vehicle


Boat

LandVehiclesize

WaterVehiclesize

weight displacement

name conflict




Checking Savings

Account




Person

Fem

ale

Player

Mal




Tennis Soccer

Player

overlapping

Male Female

Person

disjoint

Ten

nis

Soccer


UniversityStudent

Postgrad

Tree




Oak BirchElm

Tree

incomplete

PostgradUndergrad

UniversityStudent

complete

Un

der

grad

Oak

Elm

Birch


Player


Tennis Soccer

Player


UG PG

Course




Ten

nis

Soccer

Course

UG

PG


UniversityStudentP

ostgrad


Oak BirchElm

Tree

disjoint incomplete

PostgradUndergrad

UniversityStudent

disjoint complete

disjoint complete

disjoint incomplete

Un

der

grad

TreeOak

Elm

Birch







QUESTIONQUESTION


Payment








QUESTIONQUESTION


Individual Company

Customer



LINKLINK


Pam Drew

Fred Lochovsky

Gan Kok Wee

Dik Lee

Person

HKUST

Boeing

Organization

COMP 111

COMP 337

COMP 211

COMP 332

Course


242






Person Course


Teaches

Works-for




W

orks-for

Organization

Teaches

242





Works-for




Attended

Works-for




Manages




Project Language





Customer Account

Bank






X

X

radic



Project Language

Person






X

X

X










242 532





C1 C2

A cdab

















01



111

Country

China

Canada

USA

City

Beijing

Ottawa

New York

Washington

Capital-of




1 110


Assigned-toEmployee

John

Alan

Bill

Larry

James


Department

Sales

Marketing

Production





Supplier

E-com

SGH

Hi-tech

Lansing

Mach

Vtech

Part

85213

28175

33472

90231

Supplies


1045 15

QUESTIONQUESTION








01



Student

Course Professor

Registration

0 or 1 professor

many courses

many students




QUESTIONQUESTION

03

01

0 1 2 or 3 days

0 or 1 classrooms

many courses




Classroom

Course Day

Meets



QUESTIONQUESTION












EXAMPLEEXAMPLE

Person


Car


Car loan


Company

namecompany ID

Bank

namebank ID





DiskComputerHas




242




CarChassis Engine















242



Boss

Worker

PersonManages

John

Sarah

Frank

Bill

Boss

Boss

Worker







Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe

A+

B+

A-C

A

B

242








(a) in Student

(b) in Course








(a) in Student

(b) in Course



Student Course

Enrolled-ingrade

Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe


B+

A-C

A

B

A+






nameaddress

Works-for

salary



ordering

subset


subset

Chair-of

general


A

1Country President

Has ordered













laquoboundaryraquo



PenTracker








Order


Payable

Account

balanceowner


VIP

expiry date

1

1

1

1

1Has buy invoice

Has sell invoice

incomplete

buyer

seller



Client

Successor

GUIEventHandler

EventHandler




EXAMPLEEXAMPLE




track






GradUndergrad

Student

complete disjoint





association link




DBMSsoftware




Microsoftsoftware

Word PowerPoint


232




airplane







student


IS_Arelationship




superclasssupertype

subclasssubtype



student

undergrad

John Sam Tina

name student id






OBJECTOBJECT





balance

deposit

withdraw

234 242


Balance

Deposit

Withdraw





state

balance


deposit


withdraw


payInterest


behaviour

identity





object 1

interface

response

request

user

request





response

object 2

interface











234 242



234 242



















234






Examples


name string















234 242




class operation

Account payInterest






242



















Account




Class nameattribute

compartment


extracompartment


SCOPESCOPE


















242





242




242



242




Vehicle

Van Car Truck



vehicle-type




subclass

superclass

superclass subclass

242










payInterest

interestRate


Checking Savings



serviceCharge

withdraw

CheckingSavings


(attributes only)






Single inheritance



Student Employee

Undergrad Postgrad

TA

Staff Faculty

UniversityMember

id

id id

id id id id

id id



id id id id

id id

Student Employee

Undergrad Postgrad

TA

Staff Faculty

idid



Vehicle


Boat

LandVehiclesize

WaterVehiclesize

weight displacement

name conflict




Checking Savings

Account




Person

Fem

ale

Player

Mal




Tennis Soccer

Player

overlapping

Male Female

Person

disjoint

Ten

nis

Soccer


UniversityStudent

Postgrad

Tree




Oak BirchElm

Tree

incomplete

PostgradUndergrad

UniversityStudent

complete

Un

der

grad

Oak

Elm

Birch


Player


Tennis Soccer

Player


UG PG

Course




Ten

nis

Soccer

Course

UG

PG


UniversityStudentP

ostgrad


Oak BirchElm

Tree

disjoint incomplete

PostgradUndergrad

UniversityStudent

disjoint complete

disjoint complete

disjoint incomplete

Un

der

grad

TreeOak

Elm

Birch







QUESTIONQUESTION


Payment








QUESTIONQUESTION


Individual Company

Customer



LINKLINK


Pam Drew

Fred Lochovsky

Gan Kok Wee

Dik Lee

Person

HKUST

Boeing

Organization

COMP 111

COMP 337

COMP 211

COMP 332

Course


242






Person Course


Teaches

Works-for




W

orks-for

Organization

Teaches

242





Works-for




Attended

Works-for




Manages




Project Language





Customer Account

Bank






X

X

radic



Project Language

Person






X

X

X










242 532





C1 C2

A cdab

















01



111

Country

China

Canada

USA

City

Beijing

Ottawa

New York

Washington

Capital-of




1 110


Assigned-toEmployee

John

Alan

Bill

Larry

James


Department

Sales

Marketing

Production





Supplier

E-com

SGH

Hi-tech

Lansing

Mach

Vtech

Part

85213

28175

33472

90231

Supplies


1045 15

QUESTIONQUESTION








01



Student

Course Professor

Registration

0 or 1 professor

many courses

many students




QUESTIONQUESTION

03

01

0 1 2 or 3 days

0 or 1 classrooms

many courses




Classroom

Course Day

Meets



QUESTIONQUESTION












EXAMPLEEXAMPLE

Person


Car


Car loan


Company

namecompany ID

Bank

namebank ID





DiskComputerHas




242




CarChassis Engine















242



Boss

Worker

PersonManages

John

Sarah

Frank

Bill

Boss

Boss

Worker







Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe

A+

B+

A-C

A

B

242








(a) in Student

(b) in Course








(a) in Student

(b) in Course



Student Course

Enrolled-ingrade

Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe


B+

A-C

A

B

A+






nameaddress

Works-for

salary



ordering

subset


subset

Chair-of

general


A

1Country President

Has ordered













laquoboundaryraquo



PenTracker








Order


Payable

Account

balanceowner


VIP

expiry date

1

1

1

1

1Has buy invoice

Has sell invoice

incomplete

buyer

seller



Client

Successor

GUIEventHandler

EventHandler




EXAMPLEEXAMPLE




track






GradUndergrad

Student

complete disjoint





association link




airplane







student


IS_Arelationship




superclasssupertype

subclasssubtype



student

undergrad

John Sam Tina

name student id






OBJECTOBJECT





balance

deposit

withdraw

234 242


Balance

Deposit

Withdraw





state

balance


deposit


withdraw


payInterest


behaviour

identity





object 1

interface

response

request

user

request





response

object 2

interface











234 242



234 242



















234






Examples


name string















234 242




class operation

Account payInterest






242



















Account




Class nameattribute

compartment


extracompartment


SCOPESCOPE


















242





242




242



242




Vehicle

Van Car Truck



vehicle-type




subclass

superclass

superclass subclass

242










payInterest

interestRate


Checking Savings



serviceCharge

withdraw

CheckingSavings


(attributes only)






Single inheritance



Student Employee

Undergrad Postgrad

TA

Staff Faculty

UniversityMember

id

id id

id id id id

id id



id id id id

id id

Student Employee

Undergrad Postgrad

TA

Staff Faculty

idid



Vehicle


Boat

LandVehiclesize

WaterVehiclesize

weight displacement

name conflict




Checking Savings

Account




Person

Fem

ale

Player

Mal




Tennis Soccer

Player

overlapping

Male Female

Person

disjoint

Ten

nis

Soccer


UniversityStudent

Postgrad

Tree




Oak BirchElm

Tree

incomplete

PostgradUndergrad

UniversityStudent

complete

Un

der

grad

Oak

Elm

Birch


Player


Tennis Soccer

Player


UG PG

Course




Ten

nis

Soccer

Course

UG

PG


UniversityStudentP

ostgrad


Oak BirchElm

Tree

disjoint incomplete

PostgradUndergrad

UniversityStudent

disjoint complete

disjoint complete

disjoint incomplete

Un

der

grad

TreeOak

Elm

Birch







QUESTIONQUESTION


Payment








QUESTIONQUESTION


Individual Company

Customer



LINKLINK


Pam Drew

Fred Lochovsky

Gan Kok Wee

Dik Lee

Person

HKUST

Boeing

Organization

COMP 111

COMP 337

COMP 211

COMP 332

Course


242






Person Course


Teaches

Works-for




W

orks-for

Organization

Teaches

242





Works-for




Attended

Works-for




Manages




Project Language





Customer Account

Bank






X

X

radic



Project Language

Person






X

X

X










242 532





C1 C2

A cdab

















01



111

Country

China

Canada

USA

City

Beijing

Ottawa

New York

Washington

Capital-of




1 110


Assigned-toEmployee

John

Alan

Bill

Larry

James


Department

Sales

Marketing

Production





Supplier

E-com

SGH

Hi-tech

Lansing

Mach

Vtech

Part

85213

28175

33472

90231

Supplies


1045 15

QUESTIONQUESTION








01



Student

Course Professor

Registration

0 or 1 professor

many courses

many students




QUESTIONQUESTION

03

01

0 1 2 or 3 days

0 or 1 classrooms

many courses




Classroom

Course Day

Meets



QUESTIONQUESTION












EXAMPLEEXAMPLE

Person


Car


Car loan


Company

namecompany ID

Bank

namebank ID





DiskComputerHas




242




CarChassis Engine















242



Boss

Worker

PersonManages

John

Sarah

Frank

Bill

Boss

Boss

Worker







Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe

A+

B+

A-C

A

B

242








(a) in Student

(b) in Course








(a) in Student

(b) in Course



Student Course

Enrolled-ingrade

Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe


B+

A-C

A

B

A+






nameaddress

Works-for

salary



ordering

subset


subset

Chair-of

general


A

1Country President

Has ordered













laquoboundaryraquo



PenTracker








Order


Payable

Account

balanceowner


VIP

expiry date

1

1

1

1

1Has buy invoice

Has sell invoice

incomplete

buyer

seller



Client

Successor

GUIEventHandler

EventHandler




EXAMPLEEXAMPLE




track






GradUndergrad

Student

complete disjoint





association link




student


IS_Arelationship




superclasssupertype

subclasssubtype



student

undergrad

John Sam Tina

name student id






OBJECTOBJECT





balance

deposit

withdraw

234 242


Balance

Deposit

Withdraw





state

balance


deposit


withdraw


payInterest


behaviour

identity





object 1

interface

response

request

user

request





response

object 2

interface











234 242



234 242



















234






Examples


name string















234 242




class operation

Account payInterest






242



















Account




Class nameattribute

compartment


extracompartment


SCOPESCOPE


















242





242




242



242




Vehicle

Van Car Truck



vehicle-type




subclass

superclass

superclass subclass

242










payInterest

interestRate


Checking Savings



serviceCharge

withdraw

CheckingSavings


(attributes only)






Single inheritance



Student Employee

Undergrad Postgrad

TA

Staff Faculty

UniversityMember

id

id id

id id id id

id id



id id id id

id id

Student Employee

Undergrad Postgrad

TA

Staff Faculty

idid



Vehicle


Boat

LandVehiclesize

WaterVehiclesize

weight displacement

name conflict




Checking Savings

Account




Person

Fem

ale

Player

Mal




Tennis Soccer

Player

overlapping

Male Female

Person

disjoint

Ten

nis

Soccer


UniversityStudent

Postgrad

Tree




Oak BirchElm

Tree

incomplete

PostgradUndergrad

UniversityStudent

complete

Un

der

grad

Oak

Elm

Birch


Player


Tennis Soccer

Player


UG PG

Course




Ten

nis

Soccer

Course

UG

PG


UniversityStudentP

ostgrad


Oak BirchElm

Tree

disjoint incomplete

PostgradUndergrad

UniversityStudent

disjoint complete

disjoint complete

disjoint incomplete

Un

der

grad

TreeOak

Elm

Birch







QUESTIONQUESTION


Payment








QUESTIONQUESTION


Individual Company

Customer



LINKLINK


Pam Drew

Fred Lochovsky

Gan Kok Wee

Dik Lee

Person

HKUST

Boeing

Organization

COMP 111

COMP 337

COMP 211

COMP 332

Course


242






Person Course


Teaches

Works-for




W

orks-for

Organization

Teaches

242





Works-for




Attended

Works-for




Manages




Project Language





Customer Account

Bank






X

X

radic



Project Language

Person






X

X

X










242 532





C1 C2

A cdab

















01



111

Country

China

Canada

USA

City

Beijing

Ottawa

New York

Washington

Capital-of




1 110


Assigned-toEmployee

John

Alan

Bill

Larry

James


Department

Sales

Marketing

Production





Supplier

E-com

SGH

Hi-tech

Lansing

Mach

Vtech

Part

85213

28175

33472

90231

Supplies


1045 15

QUESTIONQUESTION








01



Student

Course Professor

Registration

0 or 1 professor

many courses

many students




QUESTIONQUESTION

03

01

0 1 2 or 3 days

0 or 1 classrooms

many courses




Classroom

Course Day

Meets



QUESTIONQUESTION












EXAMPLEEXAMPLE

Person


Car


Car loan


Company

namecompany ID

Bank

namebank ID





DiskComputerHas




242




CarChassis Engine















242



Boss

Worker

PersonManages

John

Sarah

Frank

Bill

Boss

Boss

Worker







Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe

A+

B+

A-C

A

B

242








(a) in Student

(b) in Course








(a) in Student

(b) in Course



Student Course

Enrolled-ingrade

Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe


B+

A-C

A

B

A+






nameaddress

Works-for

salary



ordering

subset


subset

Chair-of

general


A

1Country President

Has ordered













laquoboundaryraquo



PenTracker








Order


Payable

Account

balanceowner


VIP

expiry date

1

1

1

1

1Has buy invoice

Has sell invoice

incomplete

buyer

seller



Client

Successor

GUIEventHandler

EventHandler




EXAMPLEEXAMPLE




track






GradUndergrad

Student

complete disjoint





association link



student

undergrad

John Sam Tina

name student id






OBJECTOBJECT





balance

deposit

withdraw

234 242


Balance

Deposit

Withdraw





state

balance


deposit


withdraw


payInterest


behaviour

identity





object 1

interface

response

request

user

request





response

object 2

interface











234 242



234 242



















234






Examples


name string















234 242




class operation

Account payInterest






242



















Account




Class nameattribute

compartment


extracompartment


SCOPESCOPE


















242





242




242



242




Vehicle

Van Car Truck



vehicle-type




subclass

superclass

superclass subclass

242










payInterest

interestRate


Checking Savings



serviceCharge

withdraw

CheckingSavings


(attributes only)






Single inheritance



Student Employee

Undergrad Postgrad

TA

Staff Faculty

UniversityMember

id

id id

id id id id

id id



id id id id

id id

Student Employee

Undergrad Postgrad

TA

Staff Faculty

idid



Vehicle


Boat

LandVehiclesize

WaterVehiclesize

weight displacement

name conflict




Checking Savings

Account




Person

Fem

ale

Player

Mal




Tennis Soccer

Player

overlapping

Male Female

Person

disjoint

Ten

nis

Soccer


UniversityStudent

Postgrad

Tree




Oak BirchElm

Tree

incomplete

PostgradUndergrad

UniversityStudent

complete

Un

der

grad

Oak

Elm

Birch


Player


Tennis Soccer

Player


UG PG

Course




Ten

nis

Soccer

Course

UG

PG


UniversityStudentP

ostgrad


Oak BirchElm

Tree

disjoint incomplete

PostgradUndergrad

UniversityStudent

disjoint complete

disjoint complete

disjoint incomplete

Un

der

grad

TreeOak

Elm

Birch







QUESTIONQUESTION


Payment








QUESTIONQUESTION


Individual Company

Customer



LINKLINK


Pam Drew

Fred Lochovsky

Gan Kok Wee

Dik Lee

Person

HKUST

Boeing

Organization

COMP 111

COMP 337

COMP 211

COMP 332

Course


242






Person Course


Teaches

Works-for




W

orks-for

Organization

Teaches

242





Works-for




Attended

Works-for




Manages




Project Language





Customer Account

Bank






X

X

radic



Project Language

Person






X

X

X










242 532





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111

Country

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Canada

USA

City

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Capital-of




1 110


Assigned-toEmployee

John

Alan

Bill

Larry

James


Department

Sales

Marketing

Production





Supplier

E-com

SGH

Hi-tech

Lansing

Mach

Vtech

Part

85213

28175

33472

90231

Supplies


1045 15

QUESTIONQUESTION








01



Student

Course Professor

Registration

0 or 1 professor

many courses

many students




QUESTIONQUESTION

03

01

0 1 2 or 3 days

0 or 1 classrooms

many courses




Classroom

Course Day

Meets



QUESTIONQUESTION












EXAMPLEEXAMPLE

Person


Car


Car loan


Company

namecompany ID

Bank

namebank ID





DiskComputerHas




242




CarChassis Engine















242



Boss

Worker

PersonManages

John

Sarah

Frank

Bill

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Boss

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Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe

A+

B+

A-C

A

B

242








(a) in Student

(b) in Course








(a) in Student

(b) in Course



Student Course

Enrolled-ingrade

Course

COMP 332

COMP 201

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Student

Marco

Connie

Jason

Joe


B+

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B

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nameaddress

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Single inheritance



Student Employee

Undergrad Postgrad

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Staff Faculty

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id

id id

id id id id

id id



id id id id

id id

Student Employee

Undergrad Postgrad

TA

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idid



Vehicle


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name conflict




Checking Savings

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Person

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Male Female

Person

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Ten

nis

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UniversityStudent

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PostgradUndergrad

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der

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Tennis Soccer

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Ten

nis

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UniversityStudentP

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PostgradUndergrad

UniversityStudent

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disjoint complete

disjoint incomplete

Un

der

grad

TreeOak

Elm

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QUESTIONQUESTION


Payment








QUESTIONQUESTION


Individual Company

Customer



LINKLINK


Pam Drew

Fred Lochovsky

Gan Kok Wee

Dik Lee

Person

HKUST

Boeing

Organization

COMP 111

COMP 337

COMP 211

COMP 332

Course


242






Person Course


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W

orks-for

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242





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242 532





C1 C2

A cdab

















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111

Country

China

Canada

USA

City

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Ottawa

New York

Washington

Capital-of




1 110


Assigned-toEmployee

John

Alan

Bill

Larry

James


Department

Sales

Marketing

Production





Supplier

E-com

SGH

Hi-tech

Lansing

Mach

Vtech

Part

85213

28175

33472

90231

Supplies


1045 15

QUESTIONQUESTION








01



Student

Course Professor

Registration

0 or 1 professor

many courses

many students




QUESTIONQUESTION

03

01

0 1 2 or 3 days

0 or 1 classrooms

many courses




Classroom

Course Day

Meets



QUESTIONQUESTION












EXAMPLEEXAMPLE

Person


Car


Car loan


Company

namecompany ID

Bank

namebank ID





DiskComputerHas




242




CarChassis Engine















242



Boss

Worker

PersonManages

John

Sarah

Frank

Bill

Boss

Boss

Worker







Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe

A+

B+

A-C

A

B

242








(a) in Student

(b) in Course








(a) in Student

(b) in Course



Student Course

Enrolled-ingrade

Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe


B+

A-C

A

B

A+






nameaddress

Works-for

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242










payInterest

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Single inheritance



Student Employee

Undergrad Postgrad

TA

Staff Faculty

UniversityMember

id

id id

id id id id

id id



id id id id

id id

Student Employee

Undergrad Postgrad

TA

Staff Faculty

idid



Vehicle


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weight displacement

name conflict




Checking Savings

Account




Person

Fem

ale

Player

Mal




Tennis Soccer

Player

overlapping

Male Female

Person

disjoint

Ten

nis

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UniversityStudent

Postgrad

Tree




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incomplete

PostgradUndergrad

UniversityStudent

complete

Un

der

grad

Oak

Elm

Birch


Player


Tennis Soccer

Player


UG PG

Course




Ten

nis

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Course

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PG


UniversityStudentP

ostgrad


Oak BirchElm

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PostgradUndergrad

UniversityStudent

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disjoint complete

disjoint incomplete

Un

der

grad

TreeOak

Elm

Birch







QUESTIONQUESTION


Payment








QUESTIONQUESTION


Individual Company

Customer



LINKLINK


Pam Drew

Fred Lochovsky

Gan Kok Wee

Dik Lee

Person

HKUST

Boeing

Organization

COMP 111

COMP 337

COMP 211

COMP 332

Course


242






Person Course


Teaches

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W

orks-for

Organization

Teaches

242





Works-for




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Project Language





Customer Account

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X

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X

X

X










242 532





C1 C2

A cdab

















01



111

Country

China

Canada

USA

City

Beijing

Ottawa

New York

Washington

Capital-of




1 110


Assigned-toEmployee

John

Alan

Bill

Larry

James


Department

Sales

Marketing

Production





Supplier

E-com

SGH

Hi-tech

Lansing

Mach

Vtech

Part

85213

28175

33472

90231

Supplies


1045 15

QUESTIONQUESTION








01



Student

Course Professor

Registration

0 or 1 professor

many courses

many students




QUESTIONQUESTION

03

01

0 1 2 or 3 days

0 or 1 classrooms

many courses




Classroom

Course Day

Meets



QUESTIONQUESTION












EXAMPLEEXAMPLE

Person


Car


Car loan


Company

namecompany ID

Bank

namebank ID





DiskComputerHas




242




CarChassis Engine















242



Boss

Worker

PersonManages

John

Sarah

Frank

Bill

Boss

Boss

Worker







Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe

A+

B+

A-C

A

B

242








(a) in Student

(b) in Course








(a) in Student

(b) in Course



Student Course

Enrolled-ingrade

Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe


B+

A-C

A

B

A+






nameaddress

Works-for

salary



ordering

subset


subset

Chair-of

general


A

1Country President

Has ordered













laquoboundaryraquo



PenTracker








Order


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balanceowner


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expiry date

1

1

1

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seller



Client

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EXAMPLEEXAMPLE




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242










payInterest

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Single inheritance



Student Employee

Undergrad Postgrad

TA

Staff Faculty

UniversityMember

id

id id

id id id id

id id



id id id id

id id

Student Employee

Undergrad Postgrad

TA

Staff Faculty

idid



Vehicle


Boat

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weight displacement

name conflict




Checking Savings

Account




Person

Fem

ale

Player

Mal




Tennis Soccer

Player

overlapping

Male Female

Person

disjoint

Ten

nis

Soccer


UniversityStudent

Postgrad

Tree




Oak BirchElm

Tree

incomplete

PostgradUndergrad

UniversityStudent

complete

Un

der

grad

Oak

Elm

Birch


Player


Tennis Soccer

Player


UG PG

Course




Ten

nis

Soccer

Course

UG

PG


UniversityStudentP

ostgrad


Oak BirchElm

Tree

disjoint incomplete

PostgradUndergrad

UniversityStudent

disjoint complete

disjoint complete

disjoint incomplete

Un

der

grad

TreeOak

Elm

Birch







QUESTIONQUESTION


Payment








QUESTIONQUESTION


Individual Company

Customer



LINKLINK


Pam Drew

Fred Lochovsky

Gan Kok Wee

Dik Lee

Person

HKUST

Boeing

Organization

COMP 111

COMP 337

COMP 211

COMP 332

Course


242






Person Course


Teaches

Works-for




W

orks-for

Organization

Teaches

242





Works-for




Attended

Works-for




Manages




Project Language





Customer Account

Bank






X

X

radic



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Person






X

X

X










242 532





C1 C2

A cdab

















01



111

Country

China

Canada

USA

City

Beijing

Ottawa

New York

Washington

Capital-of




1 110


Assigned-toEmployee

John

Alan

Bill

Larry

James


Department

Sales

Marketing

Production





Supplier

E-com

SGH

Hi-tech

Lansing

Mach

Vtech

Part

85213

28175

33472

90231

Supplies


1045 15

QUESTIONQUESTION








01



Student

Course Professor

Registration

0 or 1 professor

many courses

many students




QUESTIONQUESTION

03

01

0 1 2 or 3 days

0 or 1 classrooms

many courses




Classroom

Course Day

Meets



QUESTIONQUESTION












EXAMPLEEXAMPLE

Person


Car


Car loan


Company

namecompany ID

Bank

namebank ID





DiskComputerHas




242




CarChassis Engine















242



Boss

Worker

PersonManages

John

Sarah

Frank

Bill

Boss

Boss

Worker







Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe

A+

B+

A-C

A

B

242








(a) in Student

(b) in Course








(a) in Student

(b) in Course



Student Course

Enrolled-ingrade

Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe


B+

A-C

A

B

A+






nameaddress

Works-for

salary



ordering

subset


subset

Chair-of

general


A

1Country President

Has ordered













laquoboundaryraquo



PenTracker








Order


Payable

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balanceowner


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expiry date

1

1

1

1

1Has buy invoice

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track






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234 242



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242



















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vehicle-type




subclass

superclass

superclass subclass

242










payInterest

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Checking Savings



serviceCharge

withdraw

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(attributes only)






Single inheritance



Student Employee

Undergrad Postgrad

TA

Staff Faculty

UniversityMember

id

id id

id id id id

id id



id id id id

id id

Student Employee

Undergrad Postgrad

TA

Staff Faculty

idid



Vehicle


Boat

LandVehiclesize

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weight displacement

name conflict




Checking Savings

Account




Person

Fem

ale

Player

Mal




Tennis Soccer

Player

overlapping

Male Female

Person

disjoint

Ten

nis

Soccer


UniversityStudent

Postgrad

Tree




Oak BirchElm

Tree

incomplete

PostgradUndergrad

UniversityStudent

complete

Un

der

grad

Oak

Elm

Birch


Player


Tennis Soccer

Player


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Course




Ten

nis

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Course

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PG


UniversityStudentP

ostgrad


Oak BirchElm

Tree

disjoint incomplete

PostgradUndergrad

UniversityStudent

disjoint complete

disjoint complete

disjoint incomplete

Un

der

grad

TreeOak

Elm

Birch







QUESTIONQUESTION


Payment








QUESTIONQUESTION


Individual Company

Customer



LINKLINK


Pam Drew

Fred Lochovsky

Gan Kok Wee

Dik Lee

Person

HKUST

Boeing

Organization

COMP 111

COMP 337

COMP 211

COMP 332

Course


242






Person Course


Teaches

Works-for




W

orks-for

Organization

Teaches

242





Works-for




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Manages




Project Language





Customer Account

Bank






X

X

radic



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Person






X

X

X










242 532





C1 C2

A cdab

















01



111

Country

China

Canada

USA

City

Beijing

Ottawa

New York

Washington

Capital-of




1 110


Assigned-toEmployee

John

Alan

Bill

Larry

James


Department

Sales

Marketing

Production





Supplier

E-com

SGH

Hi-tech

Lansing

Mach

Vtech

Part

85213

28175

33472

90231

Supplies


1045 15

QUESTIONQUESTION








01



Student

Course Professor

Registration

0 or 1 professor

many courses

many students




QUESTIONQUESTION

03

01

0 1 2 or 3 days

0 or 1 classrooms

many courses




Classroom

Course Day

Meets



QUESTIONQUESTION












EXAMPLEEXAMPLE

Person


Car


Car loan


Company

namecompany ID

Bank

namebank ID





DiskComputerHas




242




CarChassis Engine















242



Boss

Worker

PersonManages

John

Sarah

Frank

Bill

Boss

Boss

Worker







Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe

A+

B+

A-C

A

B

242








(a) in Student

(b) in Course








(a) in Student

(b) in Course



Student Course

Enrolled-ingrade

Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe


B+

A-C

A

B

A+






nameaddress

Works-for

salary



ordering

subset


subset

Chair-of

general


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1Country President

Has ordered













laquoboundaryraquo



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Order


Payable

Account

balanceowner


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expiry date

1

1

1

1

1Has buy invoice

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incomplete

buyer

seller



Client

Successor

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EventHandler




EXAMPLEEXAMPLE




track






GradUndergrad

Student

complete disjoint





association link



234 242



















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234 242




class operation

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242



















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242





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242



242




Vehicle

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vehicle-type




subclass

superclass

superclass subclass

242










payInterest

interestRate


Checking Savings



serviceCharge

withdraw

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(attributes only)






Single inheritance



Student Employee

Undergrad Postgrad

TA

Staff Faculty

UniversityMember

id

id id

id id id id

id id



id id id id

id id

Student Employee

Undergrad Postgrad

TA

Staff Faculty

idid



Vehicle


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LandVehiclesize

WaterVehiclesize

weight displacement

name conflict




Checking Savings

Account




Person

Fem

ale

Player

Mal




Tennis Soccer

Player

overlapping

Male Female

Person

disjoint

Ten

nis

Soccer


UniversityStudent

Postgrad

Tree




Oak BirchElm

Tree

incomplete

PostgradUndergrad

UniversityStudent

complete

Un

der

grad

Oak

Elm

Birch


Player


Tennis Soccer

Player


UG PG

Course




Ten

nis

Soccer

Course

UG

PG


UniversityStudentP

ostgrad


Oak BirchElm

Tree

disjoint incomplete

PostgradUndergrad

UniversityStudent

disjoint complete

disjoint complete

disjoint incomplete

Un

der

grad

TreeOak

Elm

Birch







QUESTIONQUESTION


Payment








QUESTIONQUESTION


Individual Company

Customer



LINKLINK


Pam Drew

Fred Lochovsky

Gan Kok Wee

Dik Lee

Person

HKUST

Boeing

Organization

COMP 111

COMP 337

COMP 211

COMP 332

Course


242






Person Course


Teaches

Works-for




W

orks-for

Organization

Teaches

242





Works-for




Attended

Works-for




Manages




Project Language





Customer Account

Bank






X

X

radic



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Person






X

X

X










242 532





C1 C2

A cdab

















01



111

Country

China

Canada

USA

City

Beijing

Ottawa

New York

Washington

Capital-of




1 110


Assigned-toEmployee

John

Alan

Bill

Larry

James


Department

Sales

Marketing

Production





Supplier

E-com

SGH

Hi-tech

Lansing

Mach

Vtech

Part

85213

28175

33472

90231

Supplies


1045 15

QUESTIONQUESTION








01



Student

Course Professor

Registration

0 or 1 professor

many courses

many students




QUESTIONQUESTION

03

01

0 1 2 or 3 days

0 or 1 classrooms

many courses




Classroom

Course Day

Meets



QUESTIONQUESTION












EXAMPLEEXAMPLE

Person


Car


Car loan


Company

namecompany ID

Bank

namebank ID





DiskComputerHas




242




CarChassis Engine















242



Boss

Worker

PersonManages

John

Sarah

Frank

Bill

Boss

Boss

Worker







Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe

A+

B+

A-C

A

B

242








(a) in Student

(b) in Course








(a) in Student

(b) in Course



Student Course

Enrolled-ingrade

Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe


B+

A-C

A

B

A+






nameaddress

Works-for

salary



ordering

subset


subset

Chair-of

general


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1Country President

Has ordered













laquoboundaryraquo



PenTracker








Order


Payable

Account

balanceowner


VIP

expiry date

1

1

1

1

1Has buy invoice

Has sell invoice

incomplete

buyer

seller



Client

Successor

GUIEventHandler

EventHandler




EXAMPLEEXAMPLE




track






GradUndergrad

Student

complete disjoint





association link











234






Examples


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234 242




class operation

Account payInterest






242



















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242





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242



242




Vehicle

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242










payInterest

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Checking Savings



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(attributes only)






Single inheritance



Student Employee

Undergrad Postgrad

TA

Staff Faculty

UniversityMember

id

id id

id id id id

id id



id id id id

id id

Student Employee

Undergrad Postgrad

TA

Staff Faculty

idid



Vehicle


Boat

LandVehiclesize

WaterVehiclesize

weight displacement

name conflict




Checking Savings

Account




Person

Fem

ale

Player

Mal




Tennis Soccer

Player

overlapping

Male Female

Person

disjoint

Ten

nis

Soccer


UniversityStudent

Postgrad

Tree




Oak BirchElm

Tree

incomplete

PostgradUndergrad

UniversityStudent

complete

Un

der

grad

Oak

Elm

Birch


Player


Tennis Soccer

Player


UG PG

Course




Ten

nis

Soccer

Course

UG

PG


UniversityStudentP

ostgrad


Oak BirchElm

Tree

disjoint incomplete

PostgradUndergrad

UniversityStudent

disjoint complete

disjoint complete

disjoint incomplete

Un

der

grad

TreeOak

Elm

Birch







QUESTIONQUESTION


Payment








QUESTIONQUESTION


Individual Company

Customer



LINKLINK


Pam Drew

Fred Lochovsky

Gan Kok Wee

Dik Lee

Person

HKUST

Boeing

Organization

COMP 111

COMP 337

COMP 211

COMP 332

Course


242






Person Course


Teaches

Works-for




W

orks-for

Organization

Teaches

242





Works-for




Attended

Works-for




Manages




Project Language





Customer Account

Bank






X

X

radic



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Person






X

X

X










242 532





C1 C2

A cdab

















01



111

Country

China

Canada

USA

City

Beijing

Ottawa

New York

Washington

Capital-of




1 110


Assigned-toEmployee

John

Alan

Bill

Larry

James


Department

Sales

Marketing

Production





Supplier

E-com

SGH

Hi-tech

Lansing

Mach

Vtech

Part

85213

28175

33472

90231

Supplies


1045 15

QUESTIONQUESTION








01



Student

Course Professor

Registration

0 or 1 professor

many courses

many students




QUESTIONQUESTION

03

01

0 1 2 or 3 days

0 or 1 classrooms

many courses




Classroom

Course Day

Meets



QUESTIONQUESTION












EXAMPLEEXAMPLE

Person


Car


Car loan


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242




CarChassis Engine















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Worker

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John

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COMP 332

COMP 201

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A+

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242








(a) in Student

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Single inheritance



Student Employee

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QUESTIONQUESTION


Payment








QUESTIONQUESTION


Individual Company

Customer



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Pam Drew

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HKUST

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COMP 337

COMP 211

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1045 15

QUESTIONQUESTION








01



Student

Course Professor

Registration

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many courses

many students




QUESTIONQUESTION

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0 1 2 or 3 days

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many courses




Classroom

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EXAMPLEEXAMPLE

Person


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DiskComputerHas




242




CarChassis Engine















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Boss

Worker

PersonManages

John

Sarah

Frank

Bill

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Course

COMP 332

COMP 201

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Student

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Jason

Joe

A+

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242








(a) in Student

(b) in Course








(a) in Student

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Student Course

Enrolled-ingrade

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Student

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Joe


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B

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nameaddress

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Single inheritance



Student Employee

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Person

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PostgradUndergrad

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der

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QUESTIONQUESTION


Payment








QUESTIONQUESTION


Individual Company

Customer



LINKLINK


Pam Drew

Fred Lochovsky

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Person

HKUST

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Organization

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COMP 211

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242





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242 532





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85213

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33472

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Supplies


1045 15

QUESTIONQUESTION








01



Student

Course Professor

Registration

0 or 1 professor

many courses

many students




QUESTIONQUESTION

03

01

0 1 2 or 3 days

0 or 1 classrooms

many courses




Classroom

Course Day

Meets



QUESTIONQUESTION












EXAMPLEEXAMPLE

Person


Car


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Company

namecompany ID

Bank

namebank ID





DiskComputerHas




242




CarChassis Engine















242



Boss

Worker

PersonManages

John

Sarah

Frank

Bill

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Boss

Worker







Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe

A+

B+

A-C

A

B

242








(a) in Student

(b) in Course








(a) in Student

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Student Course

Enrolled-ingrade

Course

COMP 332

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Student

Marco

Connie

Jason

Joe


B+

A-C

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B

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nameaddress

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Single inheritance



Student Employee

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id

id id

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id id id id

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Person

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UniversityStudent

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der

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der

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Elm

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QUESTIONQUESTION


Payment








QUESTIONQUESTION


Individual Company

Customer



LINKLINK


Pam Drew

Fred Lochovsky

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Person

HKUST

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Organization

COMP 111

COMP 337

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orks-for

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242





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242 532





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Part

85213

28175

33472

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Supplies


1045 15

QUESTIONQUESTION








01



Student

Course Professor

Registration

0 or 1 professor

many courses

many students




QUESTIONQUESTION

03

01

0 1 2 or 3 days

0 or 1 classrooms

many courses




Classroom

Course Day

Meets



QUESTIONQUESTION












EXAMPLEEXAMPLE

Person


Car


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Company

namecompany ID

Bank

namebank ID





DiskComputerHas




242




CarChassis Engine















242



Boss

Worker

PersonManages

John

Sarah

Frank

Bill

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Boss

Worker







Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe

A+

B+

A-C

A

B

242








(a) in Student

(b) in Course








(a) in Student

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Student Course

Enrolled-ingrade

Course

COMP 332

COMP 201

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Student

Marco

Connie

Jason

Joe


B+

A-C

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B

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nameaddress

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id

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Person

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der

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der

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Elm

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QUESTIONQUESTION


Payment








QUESTIONQUESTION


Individual Company

Customer



LINKLINK


Pam Drew

Fred Lochovsky

Gan Kok Wee

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Person

HKUST

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Organization

COMP 111

COMP 337

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Course


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242





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242 532





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Part

85213

28175

33472

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Supplies


1045 15

QUESTIONQUESTION








01



Student

Course Professor

Registration

0 or 1 professor

many courses

many students




QUESTIONQUESTION

03

01

0 1 2 or 3 days

0 or 1 classrooms

many courses




Classroom

Course Day

Meets



QUESTIONQUESTION












EXAMPLEEXAMPLE

Person


Car


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Company

namecompany ID

Bank

namebank ID





DiskComputerHas




242




CarChassis Engine















242



Boss

Worker

PersonManages

John

Sarah

Frank

Bill

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Boss

Worker







Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe

A+

B+

A-C

A

B

242








(a) in Student

(b) in Course








(a) in Student

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Student Course

Enrolled-ingrade

Course

COMP 332

COMP 201

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Student

Marco

Connie

Jason

Joe


B+

A-C

A

B

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nameaddress

Works-for

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id

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der

grad

TreeOak

Elm

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QUESTIONQUESTION


Payment








QUESTIONQUESTION


Individual Company

Customer



LINKLINK


Pam Drew

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Person

HKUST

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COMP 111

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242





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242 532





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Country

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33472

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Supplies


1045 15

QUESTIONQUESTION








01



Student

Course Professor

Registration

0 or 1 professor

many courses

many students




QUESTIONQUESTION

03

01

0 1 2 or 3 days

0 or 1 classrooms

many courses




Classroom

Course Day

Meets



QUESTIONQUESTION












EXAMPLEEXAMPLE

Person


Car


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Company

namecompany ID

Bank

namebank ID





DiskComputerHas




242




CarChassis Engine















242



Boss

Worker

PersonManages

John

Sarah

Frank

Bill

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Boss

Worker







Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe

A+

B+

A-C

A

B

242








(a) in Student

(b) in Course








(a) in Student

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Student Course

Enrolled-ingrade

Course

COMP 332

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Student

Marco

Connie

Jason

Joe


B+

A-C

A

B

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id

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Person

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der

grad

TreeOak

Elm

Birch







QUESTIONQUESTION


Payment








QUESTIONQUESTION


Individual Company

Customer



LINKLINK


Pam Drew

Fred Lochovsky

Gan Kok Wee

Dik Lee

Person

HKUST

Boeing

Organization

COMP 111

COMP 337

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Country

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Assigned-toEmployee

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Part

85213

28175

33472

90231

Supplies


1045 15

QUESTIONQUESTION








01



Student

Course Professor

Registration

0 or 1 professor

many courses

many students




QUESTIONQUESTION

03

01

0 1 2 or 3 days

0 or 1 classrooms

many courses




Classroom

Course Day

Meets



QUESTIONQUESTION












EXAMPLEEXAMPLE

Person


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namebank ID





DiskComputerHas




242




CarChassis Engine















242



Boss

Worker

PersonManages

John

Sarah

Frank

Bill

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Boss

Worker







Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe

A+

B+

A-C

A

B

242








(a) in Student

(b) in Course








(a) in Student

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Student Course

Enrolled-ingrade

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COMP 332

COMP 201

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Student

Marco

Connie

Jason

Joe


B+

A-C

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B

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Works-for

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PostgradUndergrad

UniversityStudent

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der

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QUESTIONQUESTION


Payment








QUESTIONQUESTION


Individual Company

Customer



LINKLINK


Pam Drew

Fred Lochovsky

Gan Kok Wee

Dik Lee

Person

HKUST

Boeing

Organization

COMP 111

COMP 337

COMP 211

COMP 332

Course


242






Person Course


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orks-for

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242





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242 532





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Country

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1045 15

QUESTIONQUESTION








01



Student

Course Professor

Registration

0 or 1 professor

many courses

many students




QUESTIONQUESTION

03

01

0 1 2 or 3 days

0 or 1 classrooms

many courses




Classroom

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Meets



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EXAMPLEEXAMPLE

Person


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DiskComputerHas




242




CarChassis Engine















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Worker

PersonManages

John

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COMP 332

COMP 201

COMP 303

Student

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Joe

A+

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242








(a) in Student

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Student Course

Enrolled-ingrade

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COMP 332

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Student

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Person

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nis

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UniversityStudent

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PostgradUndergrad

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disjoint incomplete

Un

der

grad

TreeOak

Elm

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QUESTIONQUESTION


Payment








QUESTIONQUESTION


Individual Company

Customer



LINKLINK


Pam Drew

Fred Lochovsky

Gan Kok Wee

Dik Lee

Person

HKUST

Boeing

Organization

COMP 111

COMP 337

COMP 211

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Course


242






Person Course


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W

orks-for

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242





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242 532





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Country

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85213

28175

33472

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Supplies


1045 15

QUESTIONQUESTION








01



Student

Course Professor

Registration

0 or 1 professor

many courses

many students




QUESTIONQUESTION

03

01

0 1 2 or 3 days

0 or 1 classrooms

many courses




Classroom

Course Day

Meets



QUESTIONQUESTION












EXAMPLEEXAMPLE

Person


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namecompany ID

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namebank ID





DiskComputerHas




242




CarChassis Engine















242



Boss

Worker

PersonManages

John

Sarah

Frank

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Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe

A+

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A

B

242








(a) in Student

(b) in Course








(a) in Student

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Student Course

Enrolled-ingrade

Course

COMP 332

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Student

Marco

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Joe


B+

A-C

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nameaddress

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Single inheritance



Student Employee

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Person

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nis

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UniversityStudent

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PostgradUndergrad

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der

grad

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PostgradUndergrad

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der

grad

TreeOak

Elm

Birch







QUESTIONQUESTION


Payment








QUESTIONQUESTION


Individual Company

Customer



LINKLINK


Pam Drew

Fred Lochovsky

Gan Kok Wee

Dik Lee

Person

HKUST

Boeing

Organization

COMP 111

COMP 337

COMP 211

COMP 332

Course


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orks-for

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242





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242 532





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Country

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85213

28175

33472

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Supplies


1045 15

QUESTIONQUESTION








01



Student

Course Professor

Registration

0 or 1 professor

many courses

many students




QUESTIONQUESTION

03

01

0 1 2 or 3 days

0 or 1 classrooms

many courses




Classroom

Course Day

Meets



QUESTIONQUESTION












EXAMPLEEXAMPLE

Person


Car


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Company

namecompany ID

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namebank ID





DiskComputerHas




242




CarChassis Engine















242



Boss

Worker

PersonManages

John

Sarah

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Course

COMP 332

COMP 201

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Student

Marco

Connie

Jason

Joe

A+

B+

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A

B

242








(a) in Student

(b) in Course








(a) in Student

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Student Course

Enrolled-ingrade

Course

COMP 332

COMP 201

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Student

Marco

Connie

Jason

Joe


B+

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nameaddress

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Single inheritance



Student Employee

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id id id id

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Person

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complete

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Elm

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Un

der

grad

TreeOak

Elm

Birch







QUESTIONQUESTION


Payment








QUESTIONQUESTION


Individual Company

Customer



LINKLINK


Pam Drew

Fred Lochovsky

Gan Kok Wee

Dik Lee

Person

HKUST

Boeing

Organization

COMP 111

COMP 337

COMP 211

COMP 332

Course


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orks-for

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242





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242 532





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Country

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Part

85213

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33472

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Supplies


1045 15

QUESTIONQUESTION








01



Student

Course Professor

Registration

0 or 1 professor

many courses

many students




QUESTIONQUESTION

03

01

0 1 2 or 3 days

0 or 1 classrooms

many courses




Classroom

Course Day

Meets



QUESTIONQUESTION












EXAMPLEEXAMPLE

Person


Car


Car loan


Company

namecompany ID

Bank

namebank ID





DiskComputerHas




242




CarChassis Engine















242



Boss

Worker

PersonManages

John

Sarah

Frank

Bill

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Boss

Worker







Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe

A+

B+

A-C

A

B

242








(a) in Student

(b) in Course








(a) in Student

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Student Course

Enrolled-ingrade

Course

COMP 332

COMP 201

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Student

Marco

Connie

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Joe


B+

A-C

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nameaddress

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242










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Single inheritance



Student Employee

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id

id id

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id id id id

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Person

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ale

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complete

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PostgradUndergrad

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Un

der

grad

TreeOak

Elm

Birch







QUESTIONQUESTION


Payment








QUESTIONQUESTION


Individual Company

Customer



LINKLINK


Pam Drew

Fred Lochovsky

Gan Kok Wee

Dik Lee

Person

HKUST

Boeing

Organization

COMP 111

COMP 337

COMP 211

COMP 332

Course


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orks-for

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242





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242 532





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Country

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85213

28175

33472

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Supplies


1045 15

QUESTIONQUESTION








01



Student

Course Professor

Registration

0 or 1 professor

many courses

many students




QUESTIONQUESTION

03

01

0 1 2 or 3 days

0 or 1 classrooms

many courses




Classroom

Course Day

Meets



QUESTIONQUESTION












EXAMPLEEXAMPLE

Person


Car


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Company

namecompany ID

Bank

namebank ID





DiskComputerHas




242




CarChassis Engine















242



Boss

Worker

PersonManages

John

Sarah

Frank

Bill

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Boss

Worker







Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe

A+

B+

A-C

A

B

242








(a) in Student

(b) in Course








(a) in Student

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Student Course

Enrolled-ingrade

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COMP 332

COMP 201

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Student

Marco

Connie

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B+

A-C

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B

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Single inheritance



Student Employee

Undergrad Postgrad

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id

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Person

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Un

der

grad

TreeOak

Elm

Birch







QUESTIONQUESTION


Payment








QUESTIONQUESTION


Individual Company

Customer



LINKLINK


Pam Drew

Fred Lochovsky

Gan Kok Wee

Dik Lee

Person

HKUST

Boeing

Organization

COMP 111

COMP 337

COMP 211

COMP 332

Course


242






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orks-for

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242





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242 532





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Country

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Assigned-toEmployee

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85213

28175

33472

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Supplies


1045 15

QUESTIONQUESTION








01



Student

Course Professor

Registration

0 or 1 professor

many courses

many students




QUESTIONQUESTION

03

01

0 1 2 or 3 days

0 or 1 classrooms

many courses




Classroom

Course Day

Meets



QUESTIONQUESTION












EXAMPLEEXAMPLE

Person


Car


Car loan


Company

namecompany ID

Bank

namebank ID





DiskComputerHas




242




CarChassis Engine















242



Boss

Worker

PersonManages

John

Sarah

Frank

Bill

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Boss

Worker







Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe

A+

B+

A-C

A

B

242








(a) in Student

(b) in Course








(a) in Student

(b) in Course



Student Course

Enrolled-ingrade

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COMP 332

COMP 201

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Student

Marco

Connie

Jason

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B+

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Student Employee

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Person

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Ten

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PostgradUndergrad

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disjoint incomplete

Un

der

grad

TreeOak

Elm

Birch







QUESTIONQUESTION


Payment








QUESTIONQUESTION


Individual Company

Customer



LINKLINK


Pam Drew

Fred Lochovsky

Gan Kok Wee

Dik Lee

Person

HKUST

Boeing

Organization

COMP 111

COMP 337

COMP 211

COMP 332

Course


242






Person Course


Teaches

Works-for




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orks-for

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242





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242 532





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Country

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Assigned-toEmployee

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Supplier

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85213

28175

33472

90231

Supplies


1045 15

QUESTIONQUESTION








01



Student

Course Professor

Registration

0 or 1 professor

many courses

many students




QUESTIONQUESTION

03

01

0 1 2 or 3 days

0 or 1 classrooms

many courses




Classroom

Course Day

Meets



QUESTIONQUESTION












EXAMPLEEXAMPLE

Person


Car


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Company

namecompany ID

Bank

namebank ID





DiskComputerHas




242




CarChassis Engine















242



Boss

Worker

PersonManages

John

Sarah

Frank

Bill

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Boss

Worker







Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe

A+

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A-C

A

B

242








(a) in Student

(b) in Course








(a) in Student

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Student Course

Enrolled-ingrade

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COMP 332

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Student

Marco

Connie

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Joe


B+

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buyer

seller



Client

Successor

GUIEventHandler

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EXAMPLEEXAMPLE




track






GradUndergrad

Student

complete disjoint





association link


payInterest

interestRate


Checking Savings



serviceCharge

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Single inheritance



Student Employee

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Staff Faculty

UniversityMember

id

id id

id id id id

id id



id id id id

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weight displacement

name conflict




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Person

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Tennis Soccer

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overlapping

Male Female

Person

disjoint

Ten

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UniversityStudent

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PostgradUndergrad

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UniversityStudentP

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PostgradUndergrad

UniversityStudent

disjoint complete

disjoint complete

disjoint incomplete

Un

der

grad

TreeOak

Elm

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QUESTIONQUESTION


Payment








QUESTIONQUESTION


Individual Company

Customer



LINKLINK


Pam Drew

Fred Lochovsky

Gan Kok Wee

Dik Lee

Person

HKUST

Boeing

Organization

COMP 111

COMP 337

COMP 211

COMP 332

Course


242






Person Course


Teaches

Works-for




W

orks-for

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242





Works-for




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242 532





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Country

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1 110


Assigned-toEmployee

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85213

28175

33472

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Supplies


1045 15

QUESTIONQUESTION








01



Student

Course Professor

Registration

0 or 1 professor

many courses

many students




QUESTIONQUESTION

03

01

0 1 2 or 3 days

0 or 1 classrooms

many courses




Classroom

Course Day

Meets



QUESTIONQUESTION












EXAMPLEEXAMPLE

Person


Car


Car loan


Company

namecompany ID

Bank

namebank ID





DiskComputerHas




242




CarChassis Engine















242



Boss

Worker

PersonManages

John

Sarah

Frank

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Boss

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Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe

A+

B+

A-C

A

B

242








(a) in Student

(b) in Course








(a) in Student

(b) in Course



Student Course

Enrolled-ingrade

Course

COMP 332

COMP 201

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Student

Marco

Connie

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B+

A-C

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nameaddress

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1

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EXAMPLEEXAMPLE




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GradUndergrad

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Student Employee

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id

id id

id id id id

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id id id id

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weight displacement

name conflict




Checking Savings

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Person

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Male Female

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UniversityStudent

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UniversityStudentP

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PostgradUndergrad

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disjoint complete

disjoint incomplete

Un

der

grad

TreeOak

Elm

Birch







QUESTIONQUESTION


Payment








QUESTIONQUESTION


Individual Company

Customer



LINKLINK


Pam Drew

Fred Lochovsky

Gan Kok Wee

Dik Lee

Person

HKUST

Boeing

Organization

COMP 111

COMP 337

COMP 211

COMP 332

Course


242






Person Course


Teaches

Works-for




W

orks-for

Organization

Teaches

242





Works-for




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Project Language





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X

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242 532





C1 C2

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111

Country

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1 110


Assigned-toEmployee

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James


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Supplier

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Part

85213

28175

33472

90231

Supplies


1045 15

QUESTIONQUESTION








01



Student

Course Professor

Registration

0 or 1 professor

many courses

many students




QUESTIONQUESTION

03

01

0 1 2 or 3 days

0 or 1 classrooms

many courses




Classroom

Course Day

Meets



QUESTIONQUESTION












EXAMPLEEXAMPLE

Person


Car


Car loan


Company

namecompany ID

Bank

namebank ID





DiskComputerHas




242




CarChassis Engine















242



Boss

Worker

PersonManages

John

Sarah

Frank

Bill

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Boss

Worker







Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe

A+

B+

A-C

A

B

242








(a) in Student

(b) in Course








(a) in Student

(b) in Course



Student Course

Enrolled-ingrade

Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe


B+

A-C

A

B

A+






nameaddress

Works-for

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ordering

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1

1

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1Has buy invoice

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buyer

seller



Client

Successor

GUIEventHandler

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EXAMPLEEXAMPLE




track






GradUndergrad

Student

complete disjoint





association link



id id id id

id id

Student Employee

Undergrad Postgrad

TA

Staff Faculty

idid



Vehicle


Boat

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weight displacement

name conflict




Checking Savings

Account




Person

Fem

ale

Player

Mal




Tennis Soccer

Player

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Male Female

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disjoint

Ten

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UniversityStudent

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UniversityStudentP

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disjoint incomplete

PostgradUndergrad

UniversityStudent

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disjoint complete

disjoint incomplete

Un

der

grad

TreeOak

Elm

Birch







QUESTIONQUESTION


Payment








QUESTIONQUESTION


Individual Company

Customer



LINKLINK


Pam Drew

Fred Lochovsky

Gan Kok Wee

Dik Lee

Person

HKUST

Boeing

Organization

COMP 111

COMP 337

COMP 211

COMP 332

Course


242






Person Course


Teaches

Works-for




W

orks-for

Organization

Teaches

242





Works-for




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Manages




Project Language





Customer Account

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X

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242 532





C1 C2

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Country

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Capital-of




1 110


Assigned-toEmployee

John

Alan

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Larry

James


Department

Sales

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Production





Supplier

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Mach

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Part

85213

28175

33472

90231

Supplies


1045 15

QUESTIONQUESTION








01



Student

Course Professor

Registration

0 or 1 professor

many courses

many students




QUESTIONQUESTION

03

01

0 1 2 or 3 days

0 or 1 classrooms

many courses




Classroom

Course Day

Meets



QUESTIONQUESTION












EXAMPLEEXAMPLE

Person


Car


Car loan


Company

namecompany ID

Bank

namebank ID





DiskComputerHas




242




CarChassis Engine















242



Boss

Worker

PersonManages

John

Sarah

Frank

Bill

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Boss

Worker







Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe

A+

B+

A-C

A

B

242








(a) in Student

(b) in Course








(a) in Student

(b) in Course



Student Course

Enrolled-ingrade

Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe


B+

A-C

A

B

A+






nameaddress

Works-for

salary



ordering

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Order


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expiry date

1

1

1

1

1Has buy invoice

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buyer

seller



Client

Successor

GUIEventHandler

EventHandler




EXAMPLEEXAMPLE




track






GradUndergrad

Student

complete disjoint





association link



Vehicle


Boat

LandVehiclesize

WaterVehiclesize

weight displacement

name conflict




Checking Savings

Account




Person

Fem

ale

Player

Mal




Tennis Soccer

Player

overlapping

Male Female

Person

disjoint

Ten

nis

Soccer


UniversityStudent

Postgrad

Tree




Oak BirchElm

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incomplete

PostgradUndergrad

UniversityStudent

complete

Un

der

grad

Oak

Elm

Birch


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Ten

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UniversityStudentP

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Oak BirchElm

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disjoint incomplete

PostgradUndergrad

UniversityStudent

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disjoint complete

disjoint incomplete

Un

der

grad

TreeOak

Elm

Birch







QUESTIONQUESTION


Payment








QUESTIONQUESTION


Individual Company

Customer



LINKLINK


Pam Drew

Fred Lochovsky

Gan Kok Wee

Dik Lee

Person

HKUST

Boeing

Organization

COMP 111

COMP 337

COMP 211

COMP 332

Course


242






Person Course


Teaches

Works-for




W

orks-for

Organization

Teaches

242





Works-for




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Works-for




Manages




Project Language





Customer Account

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X

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X

X

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242 532





C1 C2

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01



111

Country

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Canada

USA

City

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Capital-of




1 110


Assigned-toEmployee

John

Alan

Bill

Larry

James


Department

Sales

Marketing

Production





Supplier

E-com

SGH

Hi-tech

Lansing

Mach

Vtech

Part

85213

28175

33472

90231

Supplies


1045 15

QUESTIONQUESTION








01



Student

Course Professor

Registration

0 or 1 professor

many courses

many students




QUESTIONQUESTION

03

01

0 1 2 or 3 days

0 or 1 classrooms

many courses




Classroom

Course Day

Meets



QUESTIONQUESTION












EXAMPLEEXAMPLE

Person


Car


Car loan


Company

namecompany ID

Bank

namebank ID





DiskComputerHas




242




CarChassis Engine















242



Boss

Worker

PersonManages

John

Sarah

Frank

Bill

Boss

Boss

Worker







Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe

A+

B+

A-C

A

B

242








(a) in Student

(b) in Course








(a) in Student

(b) in Course



Student Course

Enrolled-ingrade

Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe


B+

A-C

A

B

A+






nameaddress

Works-for

salary



ordering

subset


subset

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1Country President

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laquoboundaryraquo



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Order


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1

1

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1

1Has buy invoice

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buyer

seller



Client

Successor

GUIEventHandler

EventHandler




EXAMPLEEXAMPLE




track






GradUndergrad

Student

complete disjoint





association link




Checking Savings

Account




Person

Fem

ale

Player

Mal




Tennis Soccer

Player

overlapping

Male Female

Person

disjoint

Ten

nis

Soccer


UniversityStudent

Postgrad

Tree




Oak BirchElm

Tree

incomplete

PostgradUndergrad

UniversityStudent

complete

Un

der

grad

Oak

Elm

Birch


Player


Tennis Soccer

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Course




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nis

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UniversityStudentP

ostgrad


Oak BirchElm

Tree

disjoint incomplete

PostgradUndergrad

UniversityStudent

disjoint complete

disjoint complete

disjoint incomplete

Un

der

grad

TreeOak

Elm

Birch







QUESTIONQUESTION


Payment








QUESTIONQUESTION


Individual Company

Customer



LINKLINK


Pam Drew

Fred Lochovsky

Gan Kok Wee

Dik Lee

Person

HKUST

Boeing

Organization

COMP 111

COMP 337

COMP 211

COMP 332

Course


242






Person Course


Teaches

Works-for




W

orks-for

Organization

Teaches

242





Works-for




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Works-for




Manages




Project Language





Customer Account

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X

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Person






X

X

X










242 532





C1 C2

A cdab

















01



111

Country

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Canada

USA

City

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Ottawa

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Washington

Capital-of




1 110


Assigned-toEmployee

John

Alan

Bill

Larry

James


Department

Sales

Marketing

Production





Supplier

E-com

SGH

Hi-tech

Lansing

Mach

Vtech

Part

85213

28175

33472

90231

Supplies


1045 15

QUESTIONQUESTION








01



Student

Course Professor

Registration

0 or 1 professor

many courses

many students




QUESTIONQUESTION

03

01

0 1 2 or 3 days

0 or 1 classrooms

many courses




Classroom

Course Day

Meets



QUESTIONQUESTION












EXAMPLEEXAMPLE

Person


Car


Car loan


Company

namecompany ID

Bank

namebank ID





DiskComputerHas




242




CarChassis Engine















242



Boss

Worker

PersonManages

John

Sarah

Frank

Bill

Boss

Boss

Worker







Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe

A+

B+

A-C

A

B

242








(a) in Student

(b) in Course








(a) in Student

(b) in Course



Student Course

Enrolled-ingrade

Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe


B+

A-C

A

B

A+






nameaddress

Works-for

salary



ordering

subset


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Order


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1

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seller



Client

Successor

GUIEventHandler

EventHandler




EXAMPLEEXAMPLE




track






GradUndergrad

Student

complete disjoint





association link


Person

Fem

ale

Player

Mal




Tennis Soccer

Player

overlapping

Male Female

Person

disjoint

Ten

nis

Soccer


UniversityStudent

Postgrad

Tree




Oak BirchElm

Tree

incomplete

PostgradUndergrad

UniversityStudent

complete

Un

der

grad

Oak

Elm

Birch


Player


Tennis Soccer

Player


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Course




Ten

nis

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Course

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UniversityStudentP

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Oak BirchElm

Tree

disjoint incomplete

PostgradUndergrad

UniversityStudent

disjoint complete

disjoint complete

disjoint incomplete

Un

der

grad

TreeOak

Elm

Birch







QUESTIONQUESTION


Payment








QUESTIONQUESTION


Individual Company

Customer



LINKLINK


Pam Drew

Fred Lochovsky

Gan Kok Wee

Dik Lee

Person

HKUST

Boeing

Organization

COMP 111

COMP 337

COMP 211

COMP 332

Course


242






Person Course


Teaches

Works-for




W

orks-for

Organization

Teaches

242





Works-for




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Manages




Project Language





Customer Account

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Person






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242 532





C1 C2

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111

Country

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Canada

USA

City

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New York

Washington

Capital-of




1 110


Assigned-toEmployee

John

Alan

Bill

Larry

James


Department

Sales

Marketing

Production





Supplier

E-com

SGH

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Mach

Vtech

Part

85213

28175

33472

90231

Supplies


1045 15

QUESTIONQUESTION








01



Student

Course Professor

Registration

0 or 1 professor

many courses

many students




QUESTIONQUESTION

03

01

0 1 2 or 3 days

0 or 1 classrooms

many courses




Classroom

Course Day

Meets



QUESTIONQUESTION












EXAMPLEEXAMPLE

Person


Car


Car loan


Company

namecompany ID

Bank

namebank ID





DiskComputerHas




242




CarChassis Engine















242



Boss

Worker

PersonManages

John

Sarah

Frank

Bill

Boss

Boss

Worker







Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe

A+

B+

A-C

A

B

242








(a) in Student

(b) in Course








(a) in Student

(b) in Course



Student Course

Enrolled-ingrade

Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe


B+

A-C

A

B

A+






nameaddress

Works-for

salary



ordering

subset


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PenTracker








Order


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1

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buyer

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Successor

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EXAMPLEEXAMPLE




track






GradUndergrad

Student

complete disjoint





association link


UniversityStudent

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Tree




Oak BirchElm

Tree

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PostgradUndergrad

UniversityStudent

complete

Un

der

grad

Oak

Elm

Birch


Player


Tennis Soccer

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UG PG

Course




Ten

nis

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Course

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PG


UniversityStudentP

ostgrad


Oak BirchElm

Tree

disjoint incomplete

PostgradUndergrad

UniversityStudent

disjoint complete

disjoint complete

disjoint incomplete

Un

der

grad

TreeOak

Elm

Birch







QUESTIONQUESTION


Payment








QUESTIONQUESTION


Individual Company

Customer



LINKLINK


Pam Drew

Fred Lochovsky

Gan Kok Wee

Dik Lee

Person

HKUST

Boeing

Organization

COMP 111

COMP 337

COMP 211

COMP 332

Course


242






Person Course


Teaches

Works-for




W

orks-for

Organization

Teaches

242





Works-for




Attended

Works-for




Manages




Project Language





Customer Account

Bank






X

X

radic



Project Language

Person






X

X

X










242 532





C1 C2

A cdab

















01



111

Country

China

Canada

USA

City

Beijing

Ottawa

New York

Washington

Capital-of




1 110


Assigned-toEmployee

John

Alan

Bill

Larry

James


Department

Sales

Marketing

Production





Supplier

E-com

SGH

Hi-tech

Lansing

Mach

Vtech

Part

85213

28175

33472

90231

Supplies


1045 15

QUESTIONQUESTION








01



Student

Course Professor

Registration

0 or 1 professor

many courses

many students




QUESTIONQUESTION

03

01

0 1 2 or 3 days

0 or 1 classrooms

many courses




Classroom

Course Day

Meets



QUESTIONQUESTION












EXAMPLEEXAMPLE

Person


Car


Car loan


Company

namecompany ID

Bank

namebank ID





DiskComputerHas




242




CarChassis Engine















242



Boss

Worker

PersonManages

John

Sarah

Frank

Bill

Boss

Boss

Worker







Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe

A+

B+

A-C

A

B

242








(a) in Student

(b) in Course








(a) in Student

(b) in Course



Student Course

Enrolled-ingrade

Course

COMP 332

COMP 201

COMP 303

Student

Marco

Connie

Jason

Joe


B+

A-C

A

B

A+






nameaddress

Works-for

salary



ordering

subset


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Chair-of

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PenTracker








Order


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1

1

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1Has buy invoice

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Successor

GUIEventHandler

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EXAMPLEEXAMPLE




track






GradUndergrad

Student

complete disjoint





association link


Player


Tennis Soccer

Player


UG PG

Course




Ten

nis

Soccer

Course

UG

PG


UniversityStudentP

ostgrad


Oak BirchElm

Tree

disjoint incomplete

PostgradUndergrad

UniversityStudent

disjoint complete

disjoint complete

disjoint incomplete

Un

der

grad

TreeOak

Elm

Birch







QUESTIONQUESTION


Payment








QUESTIONQUESTION


Individual Company

Customer



LINKLINK


Pam Drew

Fred Lochovsky

Gan Kok Wee

Dik Lee

Person

HKUST

Boeing

Organization

COMP 111

COMP 337

COMP 211

COMP 332

Course


242






Person Course


Teaches

Works-for




W

orks-for

Organization

Teaches

242





Works-for




Attended

Works-for




Manages




Project Language





Customer Account

Bank






X

X

radic



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Person






X

X

X










242 532





C1 C2

A cdab

















01



111

Country

China

Canada

USA

City

Beijing

Ottawa

New York

Washington

Capital-of




1 110


Assigned-toEmployee

John

Alan

Bill

Larry

James


Department

Sales

Marketing

Production





Supplier

E-com

SGH

Hi-tech

Lansing

Mach

Vtech

Part

85213

28175

33472

90231

Supplies


1045 15

QUESTIONQUESTION








01



Student

Course Professor

Registration

0 or 1 professor

many courses

many students




QUESTIONQUESTION

03

01

0 1 2 or 3 days

0 or 1 classrooms

many courses




Classroom

Course Day

Meets



QUESTIONQUESTION












EXAMPLEEXAMPLE

Person


Car


Car loan


Company

namecompany ID

Bank

namebank ID





DiskComputerHas




242




CarChassis Engine















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GradUndergrad

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01



111

Country

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1 110


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85213

28175

33472

90231

Supplies


1045 15

QUESTIONQUESTION








01



Student

Course Professor

Registration

0 or 1 professor

many courses

many students




QUESTIONQUESTION

03

01

0 1 2 or 3 days

0 or 1 classrooms

many courses




Classroom

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Meets



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EXAMPLEEXAMPLE

Person


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Company

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242




CarChassis Engine















242



Boss

Worker

PersonManages

John

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COMP 332

COMP 201

COMP 303

Student

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A+

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A-C

A

B

242








(a) in Student

(b) in Course








(a) in Student

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Student Course

Enrolled-ingrade

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COMP 332

COMP 201

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Student

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nameaddress

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GradUndergrad

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complete disjoint





association link


01



111

Country

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1 110


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1045 15

QUESTIONQUESTION








01



Student

Course Professor

Registration

0 or 1 professor

many courses

many students




QUESTIONQUESTION

03

01

0 1 2 or 3 days

0 or 1 classrooms

many courses




Classroom

Course Day

Meets



QUESTIONQUESTION












EXAMPLEEXAMPLE

Person


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Bank

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DiskComputerHas




242




CarChassis Engine















242



Boss

Worker

PersonManages

John

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Course

COMP 332

COMP 201

COMP 303

Student

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A+

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242








(a) in Student

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(a) in Student

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Student Course

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COMP 332

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Student

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GradUndergrad

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1 110


Assigned-toEmployee

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1045 15

QUESTIONQUESTION








01



Student

Course Professor

Registration

0 or 1 professor

many courses

many students




QUESTIONQUESTION

03

01

0 1 2 or 3 days

0 or 1 classrooms

many courses




Classroom

Course Day

Meets



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EXAMPLEEXAMPLE

Person


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DiskComputerHas




242




CarChassis Engine















242



Boss

Worker

PersonManages

John

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Course

COMP 332

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Student

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A+

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242








(a) in Student

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Student Course

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COMP 332

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Student

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GradUndergrad

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1045 15

QUESTIONQUESTION








01



Student

Course Professor

Registration

0 or 1 professor

many courses

many students




QUESTIONQUESTION

03

01

0 1 2 or 3 days

0 or 1 classrooms

many courses




Classroom

Course Day

Meets



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EXAMPLEEXAMPLE

Person


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242




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Boss

Worker

PersonManages

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COMP 332

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242








(a) in Student

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Student Course

Enrolled-ingrade

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COMP 332

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Student

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GradUndergrad

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1045 15

QUESTIONQUESTION








01



Student

Course Professor

Registration

0 or 1 professor

many courses

many students




QUESTIONQUESTION

03

01

0 1 2 or 3 days

0 or 1 classrooms

many courses




Classroom

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EXAMPLEEXAMPLE

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PersonManages

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COMP 332

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GradUndergrad

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association link





01



Student

Course Professor

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many courses

many students




QUESTIONQUESTION

03

01

0 1 2 or 3 days

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EXAMPLEEXAMPLE

Person


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COMP 332

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GradUndergrad

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03

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GradUndergrad

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COMP 332

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GradUndergrad

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GradUndergrad

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Person


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242




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GradUndergrad

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GradUndergrad

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GradUndergrad

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GradUndergrad

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GradUndergrad

Student

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GradUndergrad

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GradUndergrad

Student

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Student Course

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GradUndergrad

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subset

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Order


Payable

Account

balanceowner


VIP

expiry date

1

1

1

1

1Has buy invoice

Has sell invoice

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buyer

seller



Client

Successor

GUIEventHandler

EventHandler




EXAMPLEEXAMPLE




track






GradUndergrad

Student

complete disjoint





association link



ordering

subset


subset

Chair-of

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A

1Country President

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Order


Payable

Account

balanceowner


VIP

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1

1

1

1

1Has buy invoice

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buyer

seller



Client

Successor

GUIEventHandler

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EXAMPLEEXAMPLE




track






GradUndergrad

Student

complete disjoint





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Order


Payable

Account

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VIP

expiry date

1

1

1

1

1Has buy invoice

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incomplete

buyer

seller



Client

Successor

GUIEventHandler

EventHandler




EXAMPLEEXAMPLE




track






GradUndergrad

Student

complete disjoint





association link





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Order


Payable

Account

balanceowner


VIP

expiry date

1

1

1

1

1Has buy invoice

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incomplete

buyer

seller



Client

Successor

GUIEventHandler

EventHandler




EXAMPLEEXAMPLE




track






GradUndergrad

Student

complete disjoint





association link




Order


Payable

Account

balanceowner


VIP

expiry date

1

1

1

1

1Has buy invoice

Has sell invoice

incomplete

buyer

seller



Client

Successor

GUIEventHandler

EventHandler




EXAMPLEEXAMPLE




track






GradUndergrad

Student

complete disjoint





association link



Client

Successor

GUIEventHandler

EventHandler




EXAMPLEEXAMPLE




track






GradUndergrad

Student

complete disjoint





association link


EXAMPLEEXAMPLE




track






GradUndergrad

Student

complete disjoint





association link






GradUndergrad

Student

complete disjoint





association link

Documents

OO MODELING WITH UML 1 OBJECT-ORIENTED MODELING WITH UML SOFTWARE ENGINEERING SOFTWARE ENGINEERING