Agile Software Riffcast 3 of 4: Extreme Programming

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Here’s the third of four podcasts on agile software development. The first – an overview on agile – is available here and the second – a survey of methodologies – is here. This 37-minute podcast focuses on the best known – and most controversial – of the methodologies: Extreme Programming.

Show Notes:

  • About embracing change, a rapid departure from plan-and-build.

  • So don’t just tweak traditional processes … reinvent them.

  • Four core values:

    • Feedback
    • Communication
    • Simplicity
    • Courage
  • Twelve practices:

    • The Planning Process. Elicitation by negotiation and ongoing discussion; specification by index cards rather than exhaustive documents.
    • Small Releases. 1-4 week iterations.
    • Simple Design. Minimalist approach. Simple, not stupid. Once and once only. "You Ain’t Gonna Need It".
    • Metaphor. Cohesive design.
    • Testing. JUnit.
    • Refactoring. "Refactor mercilessly."
    • Pair Programming. Constant review improves design and testing, enables collective ownership.
    • Collective Ownership. Keeps tacit knowledge spread across team, supports refactoring and ongoing design improvement, acts as contingency against staff departure.
    • Continuous Integration. Ensures code can change quickly, keeps developers’ attention on adding business value rather than micro-managing infrastructure.
    • On-Site Customer. Allows tacit requirements.
    • Coding Standard. Supports collective ownership.
    • **40-hour Week. ** "Sustainable Pace"
  • Origins:

    • C3 project
    • Smalltalk and unit testing
    • Design patterns
  • Stayed tuned for the next podcast, the final in this Agile Software Riffcast series: The Dark Side of Agile.

Thanks again to My Morning Jacket for the sample used in the lead-in track.