http://www.oreilly.com/catalog/covers/1565924487_cat.gif

CAN HAZ DEZINE PHAZE NOW PLZ KTHX!

http://kriscrafts.bradandkris.com/gallery/Knitting2005/Images/CommonThreadsCat.jpg

K NP!

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(For the humor-challenged, this cites http://tech.groups.yahoo.com/group/extremeprogramming/message/142174 , and this wiki had enough pre-existing "design phase" verbiage that we have needed a DesignPhase page since the late 1990s...)