Ellen F. Monk has been teaching Information Systems at the Lerner College of Business and Economics at the University of Delaware since 1989. Prior to her teaching career, Dr. Monk worked as a chemical engineer for Engelhard Industries and W. R. Grace and Co.'s Davison Chemical Division. She has a B.S. degree in chemical engineering, an MBA, and a Ph.D. in MIS.
Dr. Bret Wagner is associate professor and director of Western Michigan University's Integrated Supply Matrix Management program. Dr. Wagner received his Ph.D. in Operations Management from Michigan State University and has published a number of articles on topics in production planning and scheduling. He has been involved in the integration of ERP software into business curriculum since 1998.