Production Modeling Corporation and Industrial & Manufacturing Systems Department, University of Michigan, Dearborn, MI;Production Modeling Corporation, Three Parklane Boulevard, Suite 1006W, Dearborn, MI;Ford Motor, Advanced Manufacturing Technology Development, 24500 Glendale Avenue, Redford, MI;Engineering Animation, Inc., VP Factory Products, 2321 North Loop Drive, Ames, IA;AutoSimulstions, Inc., 655 Medical Drive, Bountiful, UT;General Motors Corporation, NA Quality, Reliability & Comp. Oper. Impl., 31 E Judson St., 2nd Floor, Pontiac, MI