Team Productivity and Quality - Understanding the ... · Team Productivity and Quality -...
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Team Productivity and Quality -Understanding the Quintuple Constraint
Jesse Freesewww.fissure.com
for SimProject®
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5 Variables Presentation 9-16
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Agenda
The Five Key Project Management Variables
The Relationship Between the Five Key Variables- What does it look like?
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5 Variables Presentation 9-16
- What does it look like?
Using the Relationship on Projects
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Three Key Project ManagementVariables
-The Triple Constraint
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5 Variables Presentation 9-16
Scope
TimeCost
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Are they Constraints or arethey Variables?
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Scope
TimeCost
• What will it take to make this project happen?or What will win the contract?
• How much money and/or schedule does thecustomer or sponsor have?
• What is the competitor’s estimate? or At what
• What will it take to make this project happen?or What will win the contract?
• How much money and/or schedule does thecustomer or sponsor have?
• What is the competitor’s estimate? or At what
Top Down Constraint Estimation
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5 Variables Presentation 9-16
• What is the competitor’s estimate? or At whatestimate will the sponsor look at other options?
• What will management tolerate?• What will the market allow?
• What is the competitor’s estimate? or At whatestimate will the sponsor look at other options?
• What will management tolerate?• What will the market allow?
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Two More Key ProjectManagement Variables
-The Quintuple Constraint
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5 Variables Presentation 9-16
Scope
Quality
Productivityof your team
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If you want to improveproductivity, what area few things you mightfocus on?
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What is the relationshipbetween the variables? Ifyou change one, what is theimpact on the others?
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As a team identify what the relationship looks like for the following:
Effort Schedule
Team Exercise
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5 Variables Presentation 9-16
Size Size
Schedule
Quality
Schedule
Effort
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Size is constant Size is constant
Let’s look at onemajor driver of theserelationships.
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5 Variables Presentation 9-16
relationships.
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Brook’s Law
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Ramp Up Time and Limited Divisibility
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Frederick Brooks -The Mythical Man-Month
• IBM 360 System Development
• Lots of data
• About projects that require communication
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5 Variables Presentation 9-16
• About projects that require communication
Addison-Wesley Publishing Company, 1975, 1995
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Understanding Brook’s LawThe Relationship Between # of People and Productivity
Number of peopleon the project:
Number of 2-way communicationchannels on the project:
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3
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5 Variables Presentation 9-16
3
6
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What is thetrend here?
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Five Key Project Variables -Relationship
Quality
Cost Time Cost Time
Quality
BudgetCut
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5 Variables Presentation 9-16
Quality& People
Scope
All five variables are balanced.
Scope
Quality& People
Scope and time areadjusted to reflect and stayin balance with the reducedcost.
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Constraint andEstimate Analysis
Team estimate
Parametric estimate
Difference in cost and time is your “Estimation RISK”
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5 Variables Presentation 9-16
Cost
Time
Parametric estimate
Expert estimate
Top down constraint
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Trade-off Summary
Minimum ScheduleLengthen ScheduleShorten Schedule*
Build Up FastBuild Up Slow
MinimumLongerShorter
ShorterLonger
MaximumDownUp
UpDown
MinimumUpDown
DownUp
Schedule Effort/Cost Quality
Effect
This looksimportant
Pattern
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5 Variables Presentation 9-16
Reduce FunctionalityAdd Functionality
Improve Productivity#Productivity Falls
* The schedule cannot be shorter than the minimum schedule. Only if westart the planning process with a schedule longer than the minimum canwe consider shortening it.
# Improving productivity generally takes place on a longer time scale thanproject duration, except large projects that run on for years.
ShorterLonger
ShorterLonger
DownUp
DownUp
UpDown
UpDown
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Conclusion
• There are five key project variables –hopefully they are not ALL constraints
• The more people you have working together,the lower their individual productivity (andquality)
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5 Variables Presentation 9-16
quality)
• If the five key variables are not in balance,something has to give
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5 Variables Presentation 9-16