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Matthew P. Stephens is a professor and a University Faculty Scholar in the College of Technology at Purdue University, where he teaches graduate and undergraduate courses in facilities planning, statistical quality control, and productivity- and reliability-based maintenance management. Stephens holds undergraduate and graduate degrees from Southern Illinois University and the University of Arkansas, with specialization in operations management and statistics. He spent nine years with several manufacturing and business enterprises, and he has been involved as a consultant with a number of major manufacturing companies. Stephens has numerous publications to his credit including several internationally adopted textbooks.