Enterprise and Application Frameworks

Fall 2002 SJSU -- CmpE

Enterprise and Application Frameworks

Dr. M.E. Fayad, Professor

Computer Engineering Department – RM#

College of Engineering

San José State University

One Washington Square

San José, CA 95192-0180

URL: http://www.cmpe.sjsu.edu/~fayad

Fall 2002 SJSU – CmpE – M.E. Fayad L1-S2 Introduction

2

Lesson 1:Introduction

Fall 2002 SJSU – CmpE – M.E. Fayad L1-S3 Introduction

Lesson Objectives

Objectives

3

Discuss the course syllabus

Introduce enterprise & application frameworks

Explore Issues in enterprise & application frameworks

Fall 2002 SJSU – CmpE – M.E. Fayad L1-S4 Introduction

Enterprise & Application Frameworks in General

Enterprise & Application Frameworks Heuristics

A Survey of Enterprise and Application Frameworks

Concepts in Enterprise and Application Frameworks

Enterprise Frameworks’ Architectures

Software Stability in Action

Stable Analysis and Design Patterns 4

Course Outline

Fall 2002 SJSU – CmpE – M.E. Fayad L1-S5 Introduction

Enterprise & Application Frameworks

Definition Goals Importance Why Enterprise & Application

Frameworks!

5

Fall 2002 SJSU – CmpE – M.E. Fayad L1-S6 Introduction

Packaging Systems

Rice & Sugar

Processedfood

Software Drinks

Medicine

43%93%96%

91%

83%

6

Fall 2002 SJSU – CmpE – M.E. Fayad L1-S7 Introduction

Framework Definitions - I

A framework is a set of cooperating classes that comprise a reusable backbone for a specific application domain.

A framework is customized to a particular application by deriving application specific classes from abstract classes defined by the framework.

7

Fall 2002 SJSU – CmpE – M.E. Fayad L1-S8 Introduction

Framework Definitions - I

Examples:– User interfaces (MVC, MacApp,

Interviews, and ET++)– Operating systems (Choices)– Structured drawing editors (Unidraw &

Hotdraw)– Distributed objects (ORBs)

8

Fall 2002 SJSU – CmpE – M.E. Fayad L1-S9 Introduction

Framework Definitions - II

A framework provides an integrated set of domain- specific functionality

Frameworks exhibit inversion of control at run-time

A framework is a semi-complete application

9

Fall 2002 SJSU – CmpE – M.E. Fayad L1-S10 Introduction

Application Frameworks vs. Other Reuse Approaches

Class Libraries

Design Patterns

Generic Applications

10

Fall 2002 SJSU – CmpE – M.E. Fayad L1-S11 Introduction

Classifying Application Frameworks - Scope

System Infrastructure Frameworks

Middleware Integration Frameworks

Enterprise Application Frameworks

Beyond Enterprise Frameworks11

Fall 2002 SJSU – CmpE – M.E. Fayad L1-S12 Introduction

According To Scope

12

System Infrastructure

29%

Middleware Integration

26%

Enterprise Application

45%

Fall 2002 SJSU – CmpE – M.E. Fayad L1-S13 Introduction

Classifying Application Frameworks - Extending Technique

13

White-Box Frameworks

Black-Box Frameworks

Gray-Box Frameworks

Fall 2002 SJSU – CmpE – M.E. Fayad L1-S14 Introduction

According to Extending Technique

White-Box31%

Gray-Box59%

Black-Box10%

14

Fall 2002 SJSU – CmpE – M.E. Fayad L1-S15 Introduction

Framework Documentation

15

Importance of Documentation.

Documentation Users:Framework Developers.Application Developers.

Fall 2002 SJSU – CmpE – M.E. Fayad L1-S16 Introduction

Framework Domains

0123456789

10

Tel

eco

m a

nd

Net

wo

rkin

g

Bu

sin

ess

and

Fin

anci

al

Dat

abas

e an

d D

ata

Man

agem

ent

So

ftw

are

Dev

elo

pm

ent

Med

ical

Gen

eral

Pu

rpo

se (

Do

mai

nle

ss)

Gen

eral

Pu

rpo

se (

Do

mai

nO

rien

ted

) Insu

ran

ce

Ind

ust

rial

an

d M

anu

fact

uri

ng

Ed

uca

tio

n a

nd

En

tert

ain

men

t

16

Fall 2002 SJSU – CmpE – M.E. Fayad L1-S17 Introduction

Range of Selling Price

17

20% of the frameworks are for free.

The highest price $2 million (HBOC).Huff, Barrington and Owens Company.www.hboc.com

Framework rentals (BOOF).Business Object Oriented Framework.

Fall 2002 SJSU – CmpE – M.E. Fayad L1-S18 Introduction

Why?

18

Reuse Reduce the cost of the application development Treat the software as assets Have time to develop new software applications Faster application development cycle Better economical model (mv. Transition)

Fall 2002 SJSU – CmpE – M.E. Fayad L1-S19 Introduction

Syllabus

Responsibilities

Lectures & Notes

Course Work

How do you get an A+ in this course

Team Environment

Assignments and Exams

Enterprise & Application Frameworks Overview 19

Summary

Fall 2002 SJSU – CmpE – M.E. Fayad L1-S20 Introduction

What are the differences between enterprise frameworks and design patterns?

What are the differences between enterprise frameworks and class library?

T/F

– Enterprise frameworks are components.

– Enterprise frameworks are design patterns

– Enterprise frameworks are class library

– Browsers are application frameworks

– ORBs are application frameworks

Give examples of enterprise and application frameworks 20

Discussion Questions

Fall 2002 SJSU – CmpE – M.E. Fayad L1-S21 Introduction

Enterprise application frameworks –

– The good, bad, and ugly

– Architectural elements

– Pros and cons

Chapter 1 and Chapter 2

Overview of UML

21

Questions for the Next Lecture

Fall 2002 SJSU – CmpE – M.E. Fayad L1-S22 Introduction

Task 1: Problem Statement for team projects are needed (see sample problems on OOPSLA -- DesignFest). This is due on the Fourth week of the semester.

Task 2: Identify the team members of your team. Select a team name and e-mail me, the team name, team’s members’ names, their e-mails, phone numbers -- Immediately.

Please note that problem statements must be submitted electronically as MS Word format.

22

Tasks for Next Lecture