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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
Measuring
                               Scope

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
Defining
                             “Done”

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