MARK NORRIS is an independent consultant with over 20 years experience in software development, computer networks and telecommunications systems. Over this time he has managed dozens of projects to completion, from the small to the multi-million pound, multi-site, and has worked for periods in Australia, Europe and Japan. He has published widely over the last ten years with a number of books on software engineering, computing, project and technology management, communications and network technologies. He lectures on network and computing issues, has contributed to references such as Encarta, i...