Simeon (Sim) Simeonov has been developing software for more than 15 years. Sim's areas of expertise encompass object-oriented technology, compiler theory, Internet tools, enterprise computing, and the broad spectrum of XML technologies. As chief architect at Macromedia Inc., Sim provides direction for the evolution of the company's technology and product strategy as well as the architecture of its server-side platform products. Previously, Sim was chief architect at Allaire Corporation, where his initiatives brought about numerous innovations to the core product lines. Sim is currently working on service-oriented architectures for the next generation of distributed XInternet applications. He is actively involved with the Java Community Process in the areas of Internet applications, XML, and Web Services. Sim also represents Macromedia on the W3C working group on XML Protocol. He is a regular speaker at conferences and a monthly columnist for XML Journal. Sim holds a B.A. in Computer Science, Economics, and Mathematics and a MSc in Computer Science.