Richard Boucherie received M.Sc. degrees in 1988 in applied mathematics and theoretical physics from the Universiteit Leiden, and received the Ph.D. degree in econometrics in 1992 from the Vrije Universiteit, Amsterdam. Since 2000 he is with the department of Applied Mathematics of the University of Twente, where he was appointed in 2003 as full professor of Stochastic Operations Research.His research interests are in queueing theory, Petri nets and random walks with application areas including wireless and sensor networks, healthcare, road traffic, and network intrusion detection and prevention. Richard is co-founder of the University of Twente Center for Healthcare Operations Improvement and Research (CHOIR) in the area of healthcare logistics, and chair of the Postdoctorate programme in healthcare logistics. In 2014 he co-founded the spin-off company Rhythm, that carries out actual implementations of healthcare logistics solutions in healthcare organisations. <Nico M. van Dijk has been active in the area of Stochastic Operations Research for over 30 years. He has always been stimulated by real-life stochastics , as reflected by his Ph.D. on Controlled Markov Processes: Time-discretization (1983), by his Wiley book on Queueing Networks and Product Forms : A systems approach (1993) and by practical application papers such as on communications, call centers, railways and ICU (Intensive care unit) systems. For a decade he works in close cooperation with the Dutch Blood banks. For joint work on blood supply, the OR team that he guided, became finalist for the EURO 2009 Excellence in OR Practice Award and received the INFORMS 2011 First Prize Interactive Poster Award. He is affiliated with the Stochastic Operations Research group at the University of Twente.
