Prof.dr.ir. Marijn Janssen is holds the Antoni van Leeuwenhoek chair in “ICT and Governance” and is head of the Information and Communication Technology section of the Technology, Policy and Management Faculty of Delft University of Technology. He is also honorary visiting professor at Brunel University, London, and visiting professor at United Nations University (UNU). His research is focussed on ICT-architecting in situations in which multiple public and private organizations need to collaborate, in which ICT plays an enabling role, there are various ways to proceed, and socio-technical solutions are constrained by organizational realities and political wishes. ICT-architecting provides principles, patterns and other instruments to guide organizations to design their infrastructure, applications, information, processes and organizations. The landscape is fundamentally changing due to current technology developments like cloud-computing, Software as a Service, blockchain, semantic services, big and open linked data (BOLD) and policy developments like open data and open government. These developments challenge the traditional relationship between governments and the public and new forms of governance are emerging.