About the Authors

Christian Wege is an enterprise application architect at DaimlerChrysler, where he is doing development and consulting, especially in the area of enterprise portals. Before joining DaimlerChrysler, he worked for IBM and HP in OO and client-server development. He is vice president of the Java User Group Stuttgart, Germany. He holds a diploma of computer science from the University of Tuebingen, Germany. Christian was a speaker at JavaOne '99, OOP 2000, XP2000, XP2001, WebSphere 2001, and other conferences and serves as a program committee member of XP2002 and XP Universe 2002. Christian can be reached at [e-mail].

Martin Lippert is a research assistant at the University of Hamburg and a professional software architect and consultant at IT Workplace Solutions. Among his current research interests are framework design and implementation, tool support for framework specialization, refactoring, Java, and Extreme Programming. He is senior architect of the JWAM framework and has gathered experience with Extreme Programming techniques over the past three years. He is project coach for Extreme Programming and software architectures and has given a number of talks, tutorials, and demonstrations on various topics of software engineering at international conferences, including ICSE, ECOOP, Extreme Programming, OOPSLA, HICSS, ICSTest, and OOP. He cowrote the upcoming book Extreme Programming in Action. Martin can be reached at [e-mail].