Before adopting XP, you need to decide whether it’s appropriate for your situation. Often, people’s default reaction to hearing about XP is to say, “Well, of course that works for other teams, but it couldn’t possibly work for us.”

Question that assumption. I’ve helped a wide variety of teams adopt XP: 20-person teams and 1-person teams; huge corporations and small startups; shrinkwrap, in-house, and outsourced software vendors; proprietary and open source developers. Through these experiences, I’ve learned that software teams are more similar than they are different. XP’s applicability has far more to do with your organization and the people involved than with the type of project you’re working on.