The ambition of the Dutch government is to create a demand-driven government by means of effective use of information and communication technology. This requires not only public, but also private parties to interact with each other. This is a complex endeavour as private and public organizations have their own goals, systems and architectures that need to be coordinated. Within this setting, a
... [Show full abstract] new architecture should be created for managing and orchestrating the interactions among governmental and private organizations. In this chapter we present an architecture aimed at supporting the coordination of public and private parties for creating a one stop shop and the main challenges therein. We found that a publicprivate service network poses higher requirements on the architecture of a service network, whereas the variety in systems of the various organizations and different aims make it more difficult to develop such an architecture. Furthermore, it is difficult to isolate architectural challenges from governance aspects, as many architectural issues need to be complemented by governance mechanisms. Architecture and governance cannot be considered in isolation.