"Managing software development" by Peter Bell

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Aleksandr Yampolskiy

Technology Business

Managing
Software Development
@PeterBell
SVP Engineering
Wednesday, May 16, 12

Deliberate discovery
Measuring scope
Estimates and commitments
Managing the backlog
Deﬁning "Done"
Iterative vs incremental

Agenda
Wednesday, May 16, 12

Deliberate
Discovery

Wednesday, May 16, 12

Iteration 0: Beyond story de-composition

Deliberate discovery
Wednesday, May 16, 12

Iteration 0: Reducing risk

Deliberate discovery
Wednesday, May 16, 12

Iteration 0: Dimensions of risk

Deliberate discovery
Wednesday, May 16, 12

Takeaways:

Gant charts suck
Focus on risk
- Modeling
- Tech spikes
- Process

Deliberate discovery
Wednesday, May 16, 12

Evolving estimating

• Ideal days (load factor)
• Story points
• 1,2,3,5,8
• 0?
• 10,20,30,51?
• T-shirt sizes
• Story count
Measuring scope
Wednesday, May 16, 12

Takeaways:

Trend towards story counts

Measuring scope
Wednesday, May 16, 12

Estimates
and

Commitments

Wednesday, May 16, 12

• 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?

Why Estimate?
Wednesday, May 16, 12

Estimates and probability
Wednesday, May 16, 12

Alternatives

Estimates
Wednesday, May 16, 12

When estimate?

Estimates
Wednesday, May 16, 12

Takeaways:

Don’t estimate
Estimate != commitment
Investment based budgeting

Estimates
Wednesday, May 16, 12

Managing
the
Backlog

Wednesday, May 16, 12

The problem: the shrinking story

Backlog
Wednesday, May 16, 12

Avoid the problem:
Small backlog, lean, WIP limits

Backlog
Wednesday, May 16, 12

Manage the problem: Story maps

Backlog
Wednesday, May 16, 12

Manage the problem: Magic/affinity estimating

Backlog
Wednesday, May 16, 12

Takeaways:

WIP limits
Bigger stories
Story maps
Magic/affinity estimating

Backlog
Wednesday, May 16, 12

How do you “deﬁne Done”?

Defining Done: Q&A
Wednesday, May 16, 12

The three C’s

card, conversation, conﬁrmation

Defining Done
Wednesday, May 16, 12

The fourth “C”

cucumber

Defining Done
Wednesday, May 16, 12

Problems with “ﬂow”

Defining Done
Wednesday, May 16, 12

Takeaways:

Pre-agreed
Executable

Defining Done
Wednesday, May 16, 12

Iterative
vs
Incremental

Wednesday, May 16, 12

Incremental is great

Iterative vs. incremental
Wednesday, May 16, 12

Iterative is better

Iterative vs. incremental
Wednesday, May 16, 12

Iterative dev with incremental estimate

Iterative vs. incremental
Wednesday, May 16, 12

Deliberate discovery
Measuring scope
Estimates and commitments
Managing the backlog
Deﬁning "Done"
Iterative vs incremental

@PeterBell
Managing s/w development SVP Engineering
Wednesday, May 16, 12

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"Managing software development" by Peter Bell

1. Managing Software Development @PeterBell SVP Engineering Wednesday, May 16, 12

2. Deliberate discovery Measuring scope Estimates and commitments Managing the backlog Deﬁning "Done" Iterative vs incremental Agenda Wednesday, May 16, 12

3. Deliberate Discovery Wednesday, May 16, 12

4. Iteration 0: Beyond story de-composition Deliberate discovery Wednesday, May 16, 12

5. Iteration 0: Reducing risk Deliberate discovery Wednesday, May 16, 12

6. Iteration 0: Dimensions of risk Deliberate discovery Wednesday, May 16, 12

7. Takeaways: Gant charts suck Focus on risk - Modeling - Tech spikes - Process Deliberate discovery Wednesday, May 16, 12

8. Measuring Scope Wednesday, May 16, 12

9. Evolving estimating • Ideal days (load factor) • Story points • 1,2,3,5,8 • 0? • 10,20,30,51? • T-shirt sizes • Story count Measuring scope Wednesday, May 16, 12

10. Takeaways: Trend towards story counts Measuring scope Wednesday, May 16, 12

11. Estimates and Commitments Wednesday, May 16, 12

12. • 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? Why Estimate? Wednesday, May 16, 12

13. Estimates and probability Wednesday, May 16, 12

14. Alternatives Estimates Wednesday, May 16, 12

15. When estimate? Estimates Wednesday, May 16, 12

16. Takeaways: Don’t estimate Estimate != commitment Investment based budgeting Estimates Wednesday, May 16, 12

17. Managing the Backlog Wednesday, May 16, 12

18. The problem: the shrinking story Backlog Wednesday, May 16, 12

19. Avoid the problem: Small backlog, lean, WIP limits Backlog Wednesday, May 16, 12

20. Manage the problem: Story maps Backlog Wednesday, May 16, 12

21. Manage the problem: Magic/affinity estimating Backlog Wednesday, May 16, 12

22. Takeaways: WIP limits Bigger stories Story maps Magic/affinity estimating Backlog Wednesday, May 16, 12

23. Deﬁning “Done” Wednesday, May 16, 12

24. How do you “deﬁne Done”? Defining Done: Q&A Wednesday, May 16, 12

25. The three C’s card, conversation, conﬁrmation Defining Done Wednesday, May 16, 12

26. The fourth “C” cucumber Defining Done Wednesday, May 16, 12

27. Problems with “ﬂow” Defining Done Wednesday, May 16, 12

28. Takeaways: Pre-agreed Executable Defining Done Wednesday, May 16, 12

29. Iterative vs Incremental Wednesday, May 16, 12

30. Incremental is great Iterative vs. incremental Wednesday, May 16, 12

31. Iterative is better Iterative vs. incremental Wednesday, May 16, 12

32. Iterative dev with incremental estimate Iterative vs. incremental Wednesday, May 16, 12

33. Deliberate discovery Measuring scope Estimates and commitments Managing the backlog Deﬁning "Done" Iterative vs incremental @PeterBell Managing s/w development SVP Engineering Wednesday, May 16, 12

"Managing software development" by Peter Bell

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