SEYMOUR BOSWORTH, CDP, is president of S. Bosworth & Associates, Plainview, New York, a management consulting firm active in computing applications for banking, commerce, and industry. Since 1972 Bosworth has been a contributing editor to all four editions of the Computer Security Handbook, and he has written many articles and lectured extensively about computer security and other technical and managerial subjects. He has been responsible for design and manufacture, system analysis, programming, and operations of both digital and analog computers. M. E. KABAY, PhD, is Associate Professor o...