Roel Wieringa is Chair of Information Systems at the University of Twente, the Netherlands. His research interests include requirements engineering, IT security risk assessment, and  design science research methodology for software. He has written three books, Requirements Engineering: Frameworks for Understanding (Wiley, 1996),  Design Methods for Reactive Systems: Yourdon, Statemate and the UML (Morgan Kaufmann, 2003, and Design Science Methodology for Information Systems and Software Engineering (Springer, 2014). He serves on the board of editors of the Requirements Engineering Journal and of the Journal of Software and Systems Modeling. Roel Wieringa has been Associate Editor in Chief of IEEE Software for the area of requirements engineering from 2004 to 2007,  has been head of the Computer Science Department of the UT from  2009 to 2013, and has been scientific director of the Dutch national School for Information and Knowledge Systems (SIKS, www.siks.nl), from 2006 to 2011. He currently heads the research group of Services, Cybersecurity, and safety at the UT. Find more information at http://wwwhome.ewi.utwente.nl/~roelw/.