ExtremeProgramming with everything; everything in ExtremeProgrammingInContext, the whole ExtremeProgrammingRoadmap, everything in ExtremeProgrammingSummary, ExtremeProgrammingSystem and ExtremeProcess and following all the ExtremeRules.

As opposed to ExtremeProgrammingInEnemyTerritory or XpLite.

Perhaps the XP that can be described is not the TrueXp.

--BenAveling
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Pure XP is when you adapt general XP to become the most effective and minimal process that will work in the context given.  Any given pure XP will be different from any other pure XP. By how much will they differ? We don't know yet. --DonWells