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Story-driven development

Story-driven development. Useful requirements, engaged customers, and data-driven projects. Carl Erickson, PhD. Ron Jeffries, XProgramming.com. Not-so-simple analogy. Development tasks Simple design Unit tests. Customer stories Simple features Acceptance tests. 1. Customer dependency.

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Story-driven development

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  1. Story-driven development Useful requirements, engaged customers, and data-driven projects Carl Erickson, PhD

  2. Ron Jeffries, XProgramming.com

  3. Not-so-simple analogy Development tasks Simple design Unit tests Customer stories Simple features Acceptance tests 1. Customer dependency 2. Testing difficulty

  4. Major Benefit #1 Requirements When you need them In small chunks Actionable, unambiguous, useful With an opportunity to learn-as-you-go

  5. Major Benefit #2 Predictability Stories can be estimated (small chunks) Project velocity can be measured Rhythm is established

  6. Major Benefit #3 Feature management Keeping it simple Staying focused Putting a cost on features Letting the customer steer

  7. Tool Support for SDD • Coordination/Collaboration • Common documents • Messages (emailed, archived) • To-do lists • Iteration Planning and Tracking • Estimates, status, budget, velocity • Predictions • Time Tracking • Estimates, status, budget • Billing

  8. Dynamometer Project • 9 months • 5 pairs of developers (3 @ AO, 2 @ BP) • C#/.NET GUI client - C++/QNX server

  9. Time Tracking+Project Status

  10. But wait, there’s more! Automating acceptance tests gets you… Executable requirements (even more unambiguous) Inexpensive for developers to run Regression testing ability Release process confidence A few more bugs

  11. References Basecamp www.basecamphq.com ExplainPMT www.explainpmt.com Atomic Object atomicobject.com XPwm xpwestmichigan.org

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