Modelling aspects of system level design

The necessity for a common modeling approach for heterogeneous systems is discussed. As an example for such a modeling technique, extended predicate/transition nets (Pr/T-Nets) are introduced. These nets can combine modeling in a declarative way by means of first order logic with an operational interpretation inherited from Petri nets. The added concepts of hierarchy and recursion allow the description of extremely complex systems. Three applications of Pr/T-Nets are shown: control of complex design systems, timing analysis, and the implementation of communication protocols