In 1989, Prof. Dr. Dieter Fensel earned both his Master in Social Science (Free University of Berlin) and his Master in Computer Science (Technical University of Berlin). In 1993, he was awarded his Doctoral degree in Economic Science, Dr. rer. pol. (Doctorate on Political Science), from the University of Karlsruhe. In 1998 he received his Habilitation in Applied Computer Science. Throughout his doctoral and post-doctoral career, Prof. Dr. Fensel has held positions at the University of Karlsruhe (AIFB), the University of Amsterdam (UvA), and the Vrije Universiteit Amsterdam (VU). In 2002, he took up a Chair of Computer Science at the University of Innsbruck, Austria. In 2003, after receiving a large grant acquired from the Science Foundation Ireland (SFI), he founded the Digital Enterprise Research Institute (DERI) at the National University of Ireland, Galway, and became the Scientific Director. In 2006 he created the Digital Enterprise Research Institute (DERI) at the University of Innsbruck, Austria, and became the Founding Director. In 2007, he established the Semantic Technology Institute International (STI2), which is organized as a collaborative association of interested scientific, industrial and governmental parties of the world wide Semantic Web and Service community that share a common vision. His current research interests focus upon the usage of semantics in 21st century computer science.