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This is what a 2nd edition should be like
on December 23, 2004
The release 1st edition of this book is still considered by many to be the kick start for the growing adoption of a software development process called Extreme Programming. After 5 years, the 2nd edition faces a much different world but also with much different content and approach. The world has learned much and so has the author. I'm glad to see that this 2nd edition reflects that development.
Beck has revised his thinking throughout the book. Some obvious examples include his current preference towards using ideal time over abstract time units in estimating, the fifth value among the initial four, the new set of principles, and the rehash of the practices.
Extreme Programming Explained is not a detailed how-to for adopting the process it describes. Actually, it doesn't really describe a process at all. What it does describe is a system of values and principles and a set of practices to support these. Even though Beck does give each practice (divided into primary and corollary practices in the 2nd edition) their share of explanation, the focus is still strongly on the "what" and "why" instead of the "how".
As someone who has read a dozen books on the topic already, I was delighted to find almost every page to provide something intriguing that either created or challenged my own thoughts. Especially the latter half of the book, dealing with topics such as TOC, scaling, Taylorism, the Toyota Production System, and the hot potato itself -- offshoring -- offered a lot to think about.
This is what a 2nd edition should be like, every single chapter reflecting new insight gathered over the years.