Rahim Adatia has been programming since he got his first computer a TRS-80 way back in the beginning of the '80s. Fortunately, he didn't stagnate there and progressed on to developing large-scale enterprise architectures using C/C++, UML, CORBA, J2EE/EJB/Java, and now C# and .NET. He has applied his more than 15 years of experience to leading implementations at Charles Schwab, Williams Communications, Valtech, Nortel Networks, Corel Corporation, Lokah Limited, and T-Mobile International, to name a few. Most recently, he has focused on the wireless middleware market, where he has led product development using Web services, J2EE, and .NET. He is also a delegate for T-Mobile International at the Open Mobile Alliance standards body. Rahim has contributed to numerous books and articles throughout his career, including the books Professional EJB and J#, and is actively reviewing other titles.