John E. Gibson, PhD, was the Commonwealth Distinguished Professor of Systems Management at the School of Engineering and Applied Science, University of Virginia, Charlottesville. He served as Dean of Engineering at the University of Virginia and at Oakland University. Dr. Gibson was working on this book at the time of his death. William T. Scherer, PhD, is a Professor in the Department of Systems and Information Engineering at the University of Virginia, where he teaches courses on systems engineering. Dr. Scherer was a student in Dr. Gibson s classes and later became a colleague. Dr. Scherer has authored and co-authored numerous publications on intelligent decision support systems, stochastic control, systems engineering education, and financial engineering. He is a former President of IEEE Intelligent Transportation Systems (ITS) Society and has won numerous teaching awards while at the University of Virginia. William F. Gibson, MBA, MPA, is the Senior Managing Director and President of IVY Creek Associates, an international consulting firm for global asset managers, brokerage firms, and banks. He was Global Chief Operating Officer at ING Investment Management, and the Head of Securities and Fund Services Operations EMEA at Citigroup. Mr. Gibson has led the infrastructure groups of global financial services firms, and is actively engaged in developing and applying new technologies in those domains. He has also been an executive lecturer at the S.C. Johnson Graduate School of Management at Cornell University. Michael C. Smith, PhD, is the Executive Director of the Accelerated Masters Program in Systems Engineering at the University of Virginia. Prior to joining the University of Virginia, Dr. Smith was a Senior Scientist at Science Applications International Corporation (now Leidos) and also served on the Industrial Engineering faculties at Oregon State University and the University of Missouri. In addition to directing the University of Virginia s Accelerated Master s Program, Dr. Smith teaches an introductory course in systems thinking and the systems approach, drawing on many of the case studies in this book.