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Work Breakdown Structure WBS

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Mind mapping. Course on Project Management. Approaches to Developing Work Breakdown ... Mind mapping. Course on Project Management. Hierarchy of Activities. EHR ... – PowerPoint PPT presentation

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Title: Work Breakdown Structure WBS


1
Work Breakdown Structure (WBS)
  • Farrokh Alemi, Ph.D.
  • Lee Baliton

2
Why break up?
  • Improve work management
  • Understand resource and time constraints
  • Set milestones for progress
  • See alternative sequencing of components of work

3
Definition of WBS
  • Breaks the project scope
  • Inter-related
  • Discrete tasks
  • Hierarchical tree structure

4
Definition of WBS
Clear starts and ends
  • Breaks the project scope
  • Inter-related task
  • Discrete tasks
  • Hierarchical tree structure

5
Definition of WBS
Four possible relationships
  • Breaks the project scope
  • Inter-related
  • Discrete tasks
  • Hierarchical tree structure

6
Definition of WBS
Four possible relationships
  • Breaks the project scope
  • Inter-related
  • Discrete tasks
  • Hierarchical tree structure
  • Finish to Start Start second task after first
    one is finished

7
Definition of WBS
Four possible relationships
  • Breaks the project scope
  • Inter-related
  • Discrete tasks
  • Hierarchical tree structure
  • Finish to Start
  • Start to Start Start second task same time as
    first one

8
Definition of WBS
Four possible relationships
  • Breaks the project scope
  • Inter-related
  • Discrete tasks
  • Hierarchical tree structure
  • Finish to Start
  • Start to Start
  • Finish to Finish Start second task so both
    finish at same time

9
Definition of WBS
Four possible relationships
  • Breaks the project scope
  • Inter-related
  • Discrete tasks
  • Hierarchical tree structure
  • Finish to Start
  • Start to Start
  • Finish to Finish
  • Start to Finish Second task cannot finish
    before first one starts

10
Definition of WBS
Lower level tasks inherit the relationships among
higher level tasks
  • Breaks the project scope
  • Inter-related task
  • Discrete tasks
  • Hierarchical tree structure

11
Hierarchy of Activities
Level 1 The root of the tree is the project name
A
12
Hierarchy of Activities
EHR implementation
A
13
Hierarchy of Activities
EHR implementation
Level 2 Components of the entire project
A
B
C
D
14
Hierarchy of Activities
EHR implementation
A
B
C
D
15
Hierarchy of Activities
EHR implementation
A
Level 3 Each level 2 tasks is broken into its
subcomponents
B
C
D
E
F
16
Hierarchy of Activities
EHR implementation
A
Purchase system
B
C
D
Train users
Configure system
E
F
Purchase training material
Detail employees
17
Hierarchy of Activities
EHR implementation
A
Purchase system
B
C
D
Train users
Configure system
F
Detail employees
18
Hierarchy of Activities
EHR implementation
A
Purchase system
B
C
D
Train users
Configure system
F
Detail employees
19
Hierarchy of Activities
EHR implementation
F
Detail employees
Train users
Purchase training material
Configure system
Purchase system
20
Approaches to Developing Work Breakdown
  • Guidelines
  • Analogy
  • Bottom up
  • Mind mapping

21
Approaches to Developing Work Breakdown
  • Guidelines
  • Analogy
  • Bottom up
  • Mind mapping

22
Approaches to Developing Work Breakdown
  • Guidelines
  • Analogy
  • Bottom up
  • Mind mapping

23
Hierarchy of Activities
EHR implementation
F
Detail employees
Train users
Purchase training material
Configure system
Purchase system
24
Hierarchy of Activities
25
Approaches to Developing Work Breakdown
  • Guidelines
  • Analogy
  • Bottom up
  • Mind mapping

26
Task
  • Mutually exclusive
  • Exhaustive

27
Task
  • Mutually exclusive
  • Exhaustive

Purchase of systems and organizing training may
not be mutually exclusive if the purchase
includes training
28
Task
  • Mutually exclusive
  • Exhaustive

29
Breadth .vs. Depth
  • Focus on breadth
  • Let details emerge
  • Progressive elaboration
  • Creativity

30
Breadth .vs. Depth
  • Focus on breadth
  • Let details emerge
  • Progressive elaboration
  • Creativity

31
Numbering Convention
1.1.2 Purchase training material
E
32
Numbering Convention
1.1.2 Purchase training material
E
33
Numbering Convention
1.1.2 Purchase training material
E
34
Numbering Convention
1.1.2 Purchase training material
E
35
Work Breakdown Is Not
  • We need to clarify some common mistakes

36
A Task Is
  • Not a goal

37
A Task Is
  • Not a goal
  • Not a process

38
Work Breakdown Is
  • Not an exhaustive list of work

39
Work Breakdown Is
  • Not an exhaustive list of work
  • Not a chronology

40
Work Breakdown Is
  • Not an exhaustive list of work
  • Not a chronology
  • Not an organization structure

41
Work Breakdown Is
  • Not an exhaustive list of work
  • Not a chronology
  • Not an organization structure
  • Not to be changed often

42
Good Work Breakdowns
  • Easy to understand
  • Corresponds to job descriptions
  • Not too detailed
  • Preserve the most important relationships among
    the tasks
  • Does not add to length of project

43
Take Home Message
  • Think Carefully through Work Breakdown Structure
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