Philip Tetlow is a Senior Certified IT Architect in IBM's Global Business Services Division, a Chartered Engineer, and an Open Group Master IT Architect. He has more than twenty years of experience in the IT industry, specializing in the application of Web-based technologies, metadata, and transformation techniques on large central government systems. He is a member of the World Wide Web Consortium and was responsible for coordinating its task force on the application of the semantic Web in software engineering.