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ManagingSoftware Development
@PeterBellSVP Engineering
Wednesday, May 16, 12
Agenda
Deliberate discoveryMeasuring scopeEstimates and commitmentsManaging the backlogDefining "Done"Iterative vs incremental
Wednesday, May 16, 12
DeliberateDiscovery
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Deliberate discovery
Iteration 0: Beyond story de-composition
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Deliberate discovery
Iteration 0: Reducing risk
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Deliberate discovery
Iteration 0: Dimensions of risk
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Deliberate discovery
Gant charts suckFocus on risk- Modeling- Tech spikes- Process
Takeaways:
Wednesday, May 16, 12
MeasuringScope
Wednesday, May 16, 12
Measuring scope
Evolving estimating
• Ideal days (load factor)
• Story points
• 1,2,3,5,8
• 0?
• 10,20,30,51?
• T-shirt sizes
• Story count
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Measuring scope
Trend towards story counts
Takeaways:
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EstimatesCommitments
and
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Why Estimate?
• Good reasons to estimate:
• Go/no go based on cost
• Market window
• ROI comparison
• Bad reasons to estimate
• Because . . .
• Ask whether:
• Time, price or both?
• Will estimate matter?
• Accuracy required?
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Estimates and probabilityWednesday, May 16, 12
Estimates
Alternatives
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Estimates
When estimate?
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Estimates
Don’t estimateEstimate != commitmentInvestment based budgeting
Takeaways:
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ManagingBacklog
the
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Backlog
The problem: the shrinking story
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Backlog
Avoid the problem: Small backlog, lean, WIP limits
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Backlog
Manage the problem: Story maps
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Backlog
Manage the problem: Magic/affinity estimating
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Backlog
WIP limits Bigger storiesStory mapsMagic/affinity estimating
Takeaways:
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Defining“Done”
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Defining Done: Q&A
How do you “define Done”?
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Defining Done
The three C’s
card, conversation, confirmation
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Defining Done
The fourth “C”
cucumber
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Defining Done
Problems with “flow”
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Defining Done
Pre-agreedExecutable
Takeaways:
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IterativeIncrementalvs
Wednesday, May 16, 12
Iterative vs. incremental
Incremental is great
Wednesday, May 16, 12
Iterative vs. incremental
Iterative is better
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Iterative vs. incremental
Iterative dev with incremental estimate
Wednesday, May 16, 12
Managing s/w development
Deliberate discoveryMeasuring scopeEstimates and commitmentsManaging the backlogDefining "Done"Iterative vs incremental
@PeterBellSVP Engineering
Wednesday, May 16, 12
