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Work Breakdown
Structure
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Project Scope Management
• Includes the processes required to ensure
that the project includes all the work
required, and only the work required, to
complete the project successfully
– Collect Requirements
– Define Scope
– Create Work Breakdown Structure (WBS)
– Verify Scope
– Control Scope
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Planning Processes
Work Breakdown
Structure with RAM
Estimate Duration
and Resources
Network Analysis
Schedule Development
Project Baseline
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A deliverable-oriented grouping of project elements that organizes and defines the total work scope of the project. Each descending level represents an increasingly detailed definition of the project work.
PMBOK® Guide Definition
WBS Definition
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The tool for breaking down a
project into its component parts
(work package).
It is the foundation of project
planning and one of the most
important techniques used in
project management.
Work Breakdown Structure
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Project X
Work Breakdown Structure
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Software
Development
Prepare
Func.Specs.
Approve
Requirements
Prepare
Test plan
Prepare
Test data
Conduct
Testing
Code
Programs
Customer
Requirements
Acceptance
TestingTesting Training
WBS in Graphical Form
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1.2.2.1
Dig
trenches
1.2.2.2
Install
pipe &
hardware
1.2.2.3
Cover
sprinkler
system
1.2.3.1
Remove
debris
1.2.3.2
Prepare
soil
1.2.3.3
Plant
lawn
seed
1.3.2.1
Mark
fence line
& post
1.3.2.2
Install
post
1.3.2.3
Install
fencing
& gates
1.3.2.4
Paint
fence
1.3.1
Acquire
fence
material
1.3.2
Construct
fence
1.2.1
Acquire
lawn
material
1.2.2
Install
sprinkler
system
1.2.3
Plant
grass
1.2.4
Plant
shrubs
1.1
Design
home
landscape
1.2
Put in
lawn
1.3
Build
fence
1.0
Home
Landscape
project
WBS in Graphical Form
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1. Software Development
1.1Customer Requirements
1.1.1 Approve Requirements
1.1.2 Prepare Functional Specifications
1.2Code Programs
1.3Testing
1.3.1 Prepare Test Plan
1.3.2 Prepare Test Data
1.3.3 Conduct Testing
1.4Training
1.5Acceptance Testing
WBS in Outline Form
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1.0 Home Landscaping Project
1.1 Design home landscape
1.2 Put in lawn
1.2.1 Acquire lawn material
1.2.2 Install sprinkler system
1.2.2.1 Dig trenches
1.2.2.2 Install pipe and hardware
1.2.2.3 Cover sprinkler system
1.2.3 Plant grass
1.2.3.1 Remove debris
1.2.3.2 Prepare soil
1.2.3.3 Plant lawn seed
1.2.4 Plant shrubs
1.3 Build fence
1.3.1 Acquire fence material
1.3.2 Construct fence
1.3.2.1 Mark fence line and post
1.3.2.2 Install post
1.3.2.3 Install fencing and gates
1.3.2.4 Paint fence
WBS in Outline Form
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Provides a detailed illustration of the project scope
Create accurate cost and schedule estimates
Monitor progress easily
Basis for building project teams
Advantages of WBS
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WBS Decomposition
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WBS Organized by Product
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WBS Organized by Phase
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WBS must be broken down starting at the top
Work packages must add up to the summary task (100% Rule)
Each summary task and work package must be named an activity that produces a product (use SMART Technique)
Criteria for a Successful WBS
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specific
measurable
agreed upon
realistic
time-bound
Criteria for a Successful WBS
S
M
A
R
T
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Estimating
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Planning Processes
Work Breakdown
Structure with RAM
Estimate Duration
and Resources
Network Analysis
Schedule Development
Project Baseline
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Factors Affecting Resource Estimating
Work Methodology Statutory Requirements
Specifications Project Duration
Resource Availability
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Estimating Work Process
AlignmentScope of
Work
Prepare
Estimate
Document
Estimate
Review
Estimate
Adjust
Estimate?
Project
Execution
Project
Completion
Establish
Standards
Database
Revise Estimate
(Based on External Review) Yes
Reality Check
(Based on Internal Review)
Lessons Learned for Continuous Improvement
Estimate Feed-back for Continuous Improvement
No
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Estimating Techniques
Expert Judgment
Analogous Estimating
Definitive Estimating
Parametric Modeling
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Analogous Estimating
500 m2:US$ 650,000
≈ 200 m2:US$ 260,000
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Analogous Estimating
10%10%
15%
20%
45%
InitiationRequirements
Design
Coding
Testing
SOFTWARE DEVELOPMENT
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Analogous Estimating
2.2.1
Dig
trenches
2.2.2
Install
pipe &
Hardware
2.2.3
Cover
sprinkler
System
2.3.1
Remove
debris
2.3.2
Prepare
soil
2.3.3
Plant
lawn
Seed
3.2.1
Mark
fence line
& post
3.2.2
Install
post
3.2.3
Install
fencing
& gates
3.2.4
Paint
fence
3.1
Acquire
fence
Material
3.2
Construct
fence
2.1
Acquire
lawn
Material
2.2
Install
sprinkler
System
2.3
Plant
grass
2.4
Plant
shrubs
1.0
Design
home
Landscape
2.0
Put in
Lawn
3.0
Build
fence
Home
Landscape
Project
100%
25% 10%9% 3% 42% 7%
2% 2% 2% 1%
4% 47% 49%
4% 5% 1%3% 1%5%
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Definitive Estimating
2.2.1
Dig
trenches
2.2.2
Install
pipe &
Hardware
2.2.3
Cover
sprinkler
System
2.3.1
Remove
debris
2.3.2
Prepare
soil
2.3.3
Plant
lawn
Seed
3.2.1
Mark
fence line
& post
3.2.2
Install
post
3.2.3
Install
fencing
& gates
3.2.4
Paint
fence
3.1
Acquire
fence
Material
3.2
Construct
fence
2.1
Acquire
lawn
Material
2.2
Install
sprinkler
System
2.3
Plant
grass
2.4
Plant
shrubs
1.0
Design
home
Landscape
2.0
Put in
Lawn
3.0
Build
fence
Home
Landscape
Project
25k 10k9k 3k 42k 7k
2k 2k 2k 1k
4k 47k 49k
4k 5k 1k3k 1k5k
100k
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Parametric Estimating
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Create your
Project’s WBS
Workshop Time
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Tasks Duration Responsible
Persons/
Team
Remark
Simple Work plan
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