The development of new complex products is increasingly conducted cooperatively in distributed, heterogeneous organisations in a dynamic environment. To successfully accomplish a project, the coordination of project controlling is of vital importance. Each participant of the development network has individual controlling systems, which cover his information and management needs. For cross-project controlling however, the creation of interoperability between distributed systems is a precondition for the coordination of processes. The article describes a cross-project controlling approach, which fosters integration by semantic modelling.