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A Tale of Two XP Teams

A Tale of Two XP Teams. “It was the best of times, it was the worst of times.”. Laurie Williams North Carolina State University. Agenda. IBM Team: “Safe Subset” of XP Practices Sabre Team: “Mostly all” of XP Summary/Comparison. Extreme Programming Examination.

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A Tale of Two XP Teams

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  1. A Tale of Two XP Teams “It was the best of times, it was the worst of times.” Laurie WilliamsNorth Carolina State University

  2. Agenda • IBM Team: “Safe Subset” of XP Practices • Sabre Team: “Mostly all” of XP • Summary/Comparison

  3. Extreme Programming Examination Extreme Programming Evaluation FrameworkXP-EF (said X-pef) XP-Context Factors (XP-cf) XP-Adherence Metrics (XP-am)(said X-pam) XP-Outcome Measures (XP-om)(said X-pom) • Reusable framework for reporting: • the extent to which an organization has adopted XP practices; and • the result of this adoption

  4. IBM: XP-Context Factors (XP-cf) • Small team (7-10) • Co-located • Web development (toolkit) • Supplier and customer distributed (US and overseas) • Examined one release “old” (low XP) to the next “new” (more XP)

  5. IBM: XP-Adherence Metrics (XP-am) • Subjective: Shodan Survey (http://agile.csc.ncsu.edu/survey) • Old 56% • New 72% • Objective Metrics

  6. IBM: XP-Results Metrics (XP-rm)

  7. Sabre: XP-Context Factors (XP-cf) • Small team (6-10) • Co-located • Scriptable GUI environment • Customer remote, multinational, several time zones • Examined third release “old” (low XP) to the ninth release “new” (sustained XP)

  8. Sabre: XP-Adherence Metrics (XP-am) • Subjective: Shodan Survey • New 77% • Objective Metrics

  9. Sabre: XP-Results Metrics (XP-rm)

  10. Summary Two characteristically-agile teams:

  11. Conclusions • XP “successful” for two small, co-located teams • “It was the best of times, it was the worst of times.” • OK, no “worst times” detected. • Though some may still yearn for the structure of plan-driven methods . . . a personal, cultural thing.

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