David R.R. Webber is Vice-President for Business Development for XML Global Technologies, in Vancouver, BC, Canada. He is a cofounder of the XML/edi Group and an acknowledged authority on XML. Webber lectures frequently in the U.S., Europe, and Asia, has more than 20 years' experience implementing business systems in a broad spectrum of industries, and is a U.S. patent holder for advanced EDI software technologies. Webber has published numerous articles and multimedia on requirements for developing XML/edi business solutions, and is currently involved in an advisory role with a wide variety of industry initiatives developing XML business schemas. He is also participating with the RELAX Schema Working Group and is heavily involved in ebXML interoperability standards development. Most recently, Webber has been focusing on facilitating the development and deployment of semantic registry systems by government and industry organizations. He received his degree in physics with computing from the University of Kent, Canterbury, UK, in 1976.