About the Authors CRAIG ERHORN is a consultant working for themanagement consulting division of "big six" accounting firm Coopers& Lybrand in New York. He has more than twenty years'experience designing, implementing, and using manufacturing andengineering systems in a broad range of industries. He has assisteda number of former employers and clients with improvement andmanagement of their product development process, and has hands-onexperience developing and introducing new products in manufacturingindustries. Craig holds a B.A. degree from Ohio WesleyanUniversity, and an M.B.A. from the University of Connecticut. Hehas held management positions in manufacturing operations andinformation systems prior to becoming a consultant, and wasresponsible for controlling introduction of new products intomanufacturing as well as working on new product development teams.Mr. Erhorn is a member of the American Production and InventoryControl Society (APICS) and is the author of a number of articlesand book chapters dealing with manufacturing systems. JOHN STARK isan independent management consultant based in Geneva, Switzerland.He has helped leading engineering and manufacturing companies inEurope, North America, and the Far East gain competitive advantageby improving product development performance. John holds B.Sc. andPh.D. degrees from Imperial College, London, England. He has workedin engineering and manufacturing environments for more than twentyyears. Dr. Stark is a member of the Institute of Directors (UK),AIAA, CASA/SME, and SAE (U.S.), and the Swiss Computer GraphicsAssociation. He is also the author of a number of previouspublications dealing with the use of CAD and EDM, and theimprovement of engineering productivity. He is the editor of the"Engineering, Data Management Newsletter" and the "EffectiveEngineering Management Newsletter."