The naming of ExtremeProgramming practices has varied over time and from person to person. In doing so, even the number of names has changed. Does this mean that ExtremeProgramming has changed? Not really. Mostly it's the way it's described that has changed, though the techniques are refined, as they should be, with time and experience.

Here, let's call them:

Outer Ring

The big picture:

Middle Ring

Within the development team:

Inner Ring

At the developer level:

(List cribbed from [http://xprogramming.com/ Ron Jeffries' site] where you'll also find his [http://www.xprogramming.com/images/circles.jpg diagram of concentric rings].)

Listed on page 54 in the White Book [0201616416] as: