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The ideal XP project goes through a short initial development phase, followed by years of simultaneous production support and refinement, and finally graceful retirement when the project no longer makes sense.
This chapter gives you an idea of the overall story of an XP project. It is idealized—you may have gotten the idea by now that no two XP projects could (or should) ever be exactly alike. What I hope you will get from this chapter is an idea of the overall flow of a project.