Written for IS managers, project leaders, or programmers, this guide provides a glimpse of the principles behind XP and potential benefits for small-to mid-sized teams developing software. This book intends to describe what XP, guiding principles, and how it works. Instead, it demonstrates how XP relies on simplicity, unit testing, programming in pairs, communal ownership of code, and customer input on software to motivate code improvement during the development process. Throughout this book, the author presents and explains these principles, such as "rapid feedback" and "play to win," which is the basis of XP. Generally speaking, XP changes the way programmers work. In the next section, the author even shows where XP works and what does not and offers suggestions for migrating teams and organizations into the process of XP Dragan. - Richard Topics covered: Extreme Programming (XP) software methodology, principles, XP team roles, facilities design, testing, refactoring, XP software lifecycle, and adopting XP.