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Work Breakdown Work Breakdown Structure (WBS)Structure (WBS)
Farrokh Alemi, Ph.D.Farrokh Alemi, Ph.D.
Lee BalitonLee Baliton
Course on Project Management
Why break up?Why break up?
Improve work managementImprove work management Understand resource and time Understand resource and time
constraintsconstraints Set milestones for progressSet milestones for progress
See alternative sequencing of See alternative sequencing of components of workcomponents of work
Course on Project Management
Definition of WBSDefinition of WBS
Breaks the project scope Breaks the project scope Inter-related Inter-related Discrete tasks Discrete tasks
Hierarchical tree structure Hierarchical tree structure
Course on Project Management
Definition of WBSDefinition of WBS
Breaks the project scope Breaks the project scope Inter-related taskInter-related task Discrete tasks Discrete tasks
Hierarchical tree structure Hierarchical tree structure
Clear starts and ends
Course on Project Management
Definition of WBSDefinition of WBS
Breaks the project scope Breaks the project scope Inter-related Inter-related Discrete tasks Discrete tasks
Hierarchical tree structure Hierarchical tree structure
Four possible
relationships
Course on Project Management
Definition of WBSDefinition of WBS
Breaks the project scope Breaks the project scope Inter-related Inter-related Discrete tasks Discrete tasks
Hierarchical tree structure Hierarchical tree structure
Four possible
relationships
1. Finish to Start: Start second task after first one is finished
Course on Project Management
Definition of WBSDefinition of WBS
Breaks the project scope Breaks the project scope Inter-related Inter-related Discrete tasks Discrete tasks
Hierarchical tree structure Hierarchical tree structure
Four possible
relationships
1. Finish to Start2. Start to Start: Start second task same time as
first one
Course on Project Management
Definition of WBSDefinition of WBS
Breaks the project scope Breaks the project scope Inter-related Inter-related Discrete tasks Discrete tasks
Hierarchical tree structure Hierarchical tree structure
Four possible
relationships
1. Finish to Start2. Start to Start3. Finish to Finish: Start second task so both
finish at same time
Course on Project Management
Definition of WBSDefinition of WBS
Breaks the project scope Breaks the project scope Inter-related Inter-related Discrete tasks Discrete tasks
Hierarchical tree structure Hierarchical tree structure
Four possible
relationships
1. Finish to Start2. Start to Start3. Finish to Finish4. Start to Finish: Second task cannot finish
before first one starts
Course on Project Management
Definition of WBSDefinition of WBS
Breaks the project scope Breaks the project scope Inter-related taskInter-related task Discrete tasks Discrete tasks
Hierarchical tree structure Hierarchical tree structure
Lower level tasks inherit the
relationships among higher
level tasks
Course on Project Management
Hierarchy of ActivitiesHierarchy of Activities
A
Level 1: The root of the tree is the
project name
Course on Project Management
Hierarchy of ActivitiesHierarchy of Activities
A
EHR implementation
Course on Project Management
Hierarchy of ActivitiesHierarchy of Activities
A
Level 2: Components of the
entire projectB C D
EHR implementation
Course on Project Management
Hierarchy of ActivitiesHierarchy of Activities
A
B C D
EHR implementation
Purchasesystem
Configure system
Train users
Course on Project Management
Hierarchy of ActivitiesHierarchy of Activities
A
B C D
EHR implementation
Purchasesystem
Configure system
Train users
E F
Level 3: Each level 2 tasks is broken into its
subcomponents
Course on Project Management
Hierarchy of ActivitiesHierarchy of Activities
A
B C D
EHR implementation
Purchasesystem
Configure system
Train users
E F
Purchase training material
Detailemployees
Course on Project Management
Hierarchy of ActivitiesHierarchy of Activities
A
B C D
EHR implementation
Purchasesystem
Configure system
Train users
F
E
Purchase training material
Detailemployees
Course on Project Management
Hierarchy of ActivitiesHierarchy of Activities
A
B C D
EHR implementation
Purchasesystem
Configure system
Train users
F
E
Purchase training material
Detailemployees
Course on Project Management
Hierarchy of ActivitiesHierarchy of Activities
EHR implementation
Purchasesystem
Configure system
A
B
C
DTrain users
F
EPurchase training material
Detailemployees
Course on Project Management
Approaches to Developing Approaches to Developing Work BreakdownWork Breakdown
GuidelinesGuidelines AnalogyAnalogy Bottom upBottom up Mind mappingMind mapping
Course on Project Management
Approaches to Developing Approaches to Developing Work BreakdownWork Breakdown
GuidelinesGuidelines AnalogyAnalogy Bottom upBottom up Mind mappingMind mapping
Course on Project Management
Approaches to Developing Approaches to Developing Work BreakdownWork Breakdown
GuidelinesGuidelines AnalogyAnalogy Bottom upBottom up Mind mappingMind mapping
Course on Project Management
Hierarchy of ActivitiesHierarchy of Activities
EHR implementation
Purchasesystem
Configure system
A
B
C
DTrain users
F
EPurchase training material
Detailemployees
Course on Project Management
Hierarchy of ActivitiesHierarchy of Activities
EHR implementation
Purchasesystem
Configure system
A
B
C
DTrain users F
EPurchase training material
Detailemployees
Course on Project Management
Approaches to Developing Approaches to Developing Work BreakdownWork Breakdown
GuidelinesGuidelines AnalogyAnalogy Bottom upBottom up Mind mappingMind mapping
Course on Project Management
TaskTask
Mutually exclusiveMutually exclusive ExhaustiveExhaustive
Course on Project Management
TaskTask
Mutually exclusiveMutually exclusive ExhaustiveExhaustive
Purchase of systems and organizing
training may not be mutually exclusive if
the purchase includes training
EHR implementation
Purchasesystem
Configure system
A
B
C
D Train users
Course on Project Management
TaskTask
Mutually exclusiveMutually exclusive ExhaustiveExhaustive
Course on Project Management
Breadth .vs. DepthBreadth .vs. Depth
Focus on breadthFocus on breadth Let details emergeLet details emerge
Progressive elaborationProgressive elaboration CreativityCreativity
Course on Project Management
Breadth .vs. DepthBreadth .vs. Depth
Focus on breadthFocus on breadth Let details emergeLet details emerge
Progressive elaborationProgressive elaboration CreativityCreativity
Course on Project Management
Numbering ConventionNumbering Convention
EHR implementation
Purchasesystem
Configure system
A
B
C
DTrain (detail)
users
E
1.1.2 Purchase training material
Course on Project Management
Numbering ConventionNumbering Convention
EHR implementation
Purchasesystem
Configure system
A
B
C
DTrain (detail)
users
E
1.1.2 Purchase training material
Course on Project Management
Numbering ConventionNumbering Convention
EHR implementation
Purchasesystem
Configure system
A
B
C
DTrain (detail)
users
E
1.1.2 Purchase training material
Course on Project Management
Numbering ConventionNumbering Convention
EHR implementation
Purchasesystem
Configure system
A
B
C
DTrain (detail)
users
E
1.1.2 Purchase training material
Course on Project Management
Work Breakdown Is Not …Work Breakdown Is Not …
We need to clarify some We need to clarify some common mistakes …common mistakes …
Course on Project Management
A Task Is …A Task Is …
Not a goalNot a goal
Course on Project Management
A Task Is …A Task Is …
Not a goalNot a goal Not a processNot a process
Course on Project Management
Work Breakdown Is …Work Breakdown Is …
Not an exhaustive list of workNot an exhaustive list of work
Course on Project Management
Work Breakdown Is …Work Breakdown Is …
Not an exhaustive list of workNot an exhaustive list of work Not a chronologyNot a chronology
Course on Project Management
Work Breakdown Is …Work Breakdown Is …
Not an exhaustive list of workNot an exhaustive list of work Not a chronologyNot a chronology Not an organization structureNot an organization structure
Course on Project Management
Work Breakdown Is …Work Breakdown Is …
Not an exhaustive list of workNot an exhaustive list of work Not a chronologyNot a chronology Not an organization structureNot an organization structure Not to be changed oftenNot to be changed often
Course on Project Management
Good Work BreakdownsGood Work Breakdowns
Easy to understandEasy to understand Corresponds to job descriptionsCorresponds to job descriptions Not too detailedNot too detailed Preserve the most important Preserve the most important
relationships among the tasksrelationships among the tasks Does not add to length of project Does not add to length of project
Take Home MessageTake Home Message
Think Carefully through Work Think Carefully through Work Breakdown StructureBreakdown Structure
