Agile Modeling (AM) is a collection of techniques for modeling software that can be applied to an eXtreme Programming (XP) project. Because XP is fast-moving software development, modeling an XP project needs to be quick as well. Traditional modeling techniques based on the UML do not work. AM shows how to use pieces of the UML and other modeling methodologies to still gain all of the benefits from XP. eXtreme Programming (XP), www.extremeprogramming.org. XP is known as a lightweight software-development method. Originally developed at Chrysler and geared to small to mid-size software development projects, it is gaining a lot of momentum in the software development community. XP is faster than traditional software development and uses Pair programmingprogrammers and developers work on code in pairsthis contributes to development that is more cost effective and error free. XP was the hottest topic at the 2000 OOPSLA conference. You'll find XP books at the top of many computer book bestseller lists.