William Robison is Director for Enterprise Applications Engineering with the Enterprise Social Investment Corporation in Columbia, MD. A Microsoft Certified Systems Engineer, Mr. Robison has fourteen years of experience in information systems design and development, during which he has served in a range of management and technical roles for the Air Force and in private industry. Mr. RobisonOs career has featured a range of platforms, including desktop PCs and workstations, NT and Unix servers, and IBM mainframes. To this book he brings more than ten years of experience programming with C++, Java, and now C#. Mr. RobisonOs professional interests include distributed systems, modeling, simulation, and visualization.