On October 24th, James Shore gave a presentation to the XP PDX group on testing in the agile environment. This was part of a series of events Jim is giving in anticipation of his new book co-authored with Shane Warden, The Art of Agile Development.
By using XP practices as a defect prevention measure, defects are much lower than in traditional development environments and fewer tester resources are required. Jim is seeing in projects that are using this type of agile defect prevention that:
- Defects have been reduced to “a couple a month.”
- The ratio of testers to programmers is 1:4, significantly lower than the 2:1 or 1.5:1 ratio seen in large development organizations.
Why It Works
XP agile engineering practices are a way to produce quality code by preventing defects as part of the software development process. Jim sited two studies to support this position: (more…)
