William A. Stimson, Ph.D., is a certified quality auditor and consultant in ISO 9000 requirements, statistical process control, and quality management. He has more than 30 years' experience in industry, 20 of them as an engineer and manager. This experience includes the design and development of automatic control systems for spacecraft and for industrial applications, and project and functional management of test and evaluation groups. In addition, Stimson spent 10 years as a lead auditor with the U.S. Navy responsible for the qualification of defense contractors and shipyards under Mil-Q-9858.