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William C. Wake is a senior consultant with Industrial Logic, Inc. From 2007 to early 2009, he managed development at Gene Codes Forensics, Inc., a producer of bioinformatics software. From 2001 through 2006, he was an independent consultant focused on agile software. He’s the coauthor of Design Patterns in Java™ (Addison-Wesley, 2006). His web site is www.xp123.com.