Leveson (computer science and engineering, U. of Washington) summarizes what is known about the safety of electromechanical systems, particularly those operated or monitored by computer. Emphasizing the importance of integrating software safety efforts with system safety engineering, she presents the elements of a program that includes management, hazard and requirements analysis, design for safety, design of the human-machine, interface, and verification. Annotation copyright Book News, Inc. Portland, Or.