DANIEL MINOLI has many years' experience providing telecommunications, networking, and IT architecture guidance and solutions for such organizations as the Advanced Research Projects Agency (ARPA), Bell Telephone Laboratories, ITT, Prudential Securities, Bell Communications Research (Bellcore/Telcordia), AT&T, New York University, Rutgers University, Stevens Institute of Technology, and Société Générale de Financement du Québec. An author of many technical references on information technology, telecommunications, and data communications, he has written columns for ComputerWorld, NetworkWorld, and Network Computing.