William J Stevenson is an associate professor of decision sciences in the College of Business at the Rochester Institute of Technology. He teaches graduate and undergraduate courses in production and operations management, management science, quality concepts, and quality applications. He is the author of textbooks in management science, statistics, and production and operations management. His articles have appeared in Management Science and Decision Sciences. He also serves as a consultant to the New York State Regents External Degree program. His current research interests are in quality applications. Dr. Stevenson received a bachelor’s degree in industrial engineering, and an MBA and a PhD in production and operations management from Syracuse University.

Sum Chee Chuong is an associate professor at the Department of Decision Sciences, NUS Business School, National University of Singapore (NUS). He has a BEng (Hons) degree from NUS and holds a PhD in operations management from the University of Minnesota. A former director of professional education at the Logistics Institute—Asia Pacific, he is currently the academic director of the S³ Asia MBA program. He received several teaching awards such as the NUS Annual Teaching Excellence Award in 2010, 2008, and 2007. He was the recipient of the Faculty Outstanding Educator Award in 2009 and 2006, and he is now on the Annual Teaching Excellence Award Honour Roll for sustained excellence in teaching. Dr. Sum is an active consultant and executive trainer, and has worked with both private and public organizations. His current research interests are in the development of operations and supply chain capabilities, operations strategy, global operations management, and Enterprise Resource Planning (ERP). His research has appeared in leading international journals such as Journal of Operations Management, Decision Sciences, IIE (Trans), European Journal of Operational Research, and Omega.