1. Source: Ambysoft 2008 TDD Survey www.ambysoft.com/surveys/tdd2008.html Copyright 2008 Scott W. Ambler Test-Driven Development Survey 2008 Scott W. Ambler www.ambysoft.com/scottAmbler.html

2. Source: Ambysoft 2008 TDD Survey www.ambysoft.com/surveys/tdd2008.html Copyright 2008 Scott W. Ambler How To Use These Slides I have provided these slides, and the raw data behind them, so that others can use them in their own work. You may reuse all, or a part of, this slide deck as long as you provide a clear reference to the source. The suggested reference is: Results from Scott Ambler’s October 2008 Test Driven Development Survey posted at www.ambysoft.com/surveys/tdd2008.htmlwww.ambysoft.com/surveys/tdd2008.html Most slides have “speaker notes”

3. Source: Ambysoft 2008 TDD Survey www.ambysoft.com/surveys/tdd2008.html Copyright 2008 Scott W. Ambler The Survey October 2008 Email sent to testdrivendevelopment@yahoogroups.com and extremeprogramming@yahoogroups.com mailing lists testdrivendevelopment@yahoogroups.com extremeprogramming@yahoogroups.com 121 respondents 74% were developers/modelers, 15% were in management 52% had 10+ years in IT 22% worked in orgs of 1000+ people 96% worked in commercial firms 50% North American, 26% European Overall goal was to explore what specification and validation techniques agile developers are really doing

4. Source: Ambysoft 2008 TDD Survey www.ambysoft.com/surveys/tdd2008.html Copyright 2008 Scott W. Ambler Learning Acceptance TDD

5. Source: Ambysoft 2008 TDD Survey www.ambysoft.com/surveys/tdd2008.html Copyright 2008 Scott W. Ambler Learning TDD Technique (Score) Acceptance TDD 1.Pair with experienced (3.3) 2.Mentoring (3.0) 3.Training (1.7) 4.Read TDD book (1.1) 5.Teach yourself (1.0) 6.Pair with learner (0.9) 7.Read articles (0.9) 8.Online forums (0.8) Developer TDD 1.Pair with experienced (3.5) 2.Mentoring (3.1) 3.Training (1.8) 4.Read TDD book (1.3) 5.Teach yourself (1.3) 6.Pair with learner (1.2) 7.Read articles (1.1) 8.Online forums (1.0)

6. Source: Ambysoft 2008 TDD Survey www.ambysoft.com/surveys/tdd2008.html Copyright 2008 Scott W. Ambler Approaches to Testing/Validation (Multiple Responses Allowed)

7. Source: Ambysoft 2008 TDD Survey www.ambysoft.com/surveys/tdd2008.html Copyright 2008 Scott W. Ambler Approaches to Capturing Requirements Specifications (Multiple Responses)

8. Source: Ambysoft 2008 TDD Survey www.ambysoft.com/surveys/tdd2008.html Copyright 2008 Scott W. Ambler Approaches to Capturing Requirements Specifications (Combined)

9. Source: Ambysoft 2008 TDD Survey www.ambysoft.com/surveys/tdd2008.html Copyright 2008 Scott W. Ambler Approaches to Capturing Design Specifications (Multiple Responses)

10. Source: Ambysoft 2008 TDD Survey www.ambysoft.com/surveys/tdd2008.html Copyright 2008 Scott W. Ambler Approaches to Capturing Design Specifications (Combined)