Federated event driven systems (FEDS) integrate event data pushed to it or pulled by it from multiple sites within and outside an enterprise. Performance requirements for these appli- cations can be met by implementing applications on networks of multiprocessors. This paper describes a graph model for applications and a method of mapping the graph on to multiprocessor networks. Information flows among processors within an address space are implemented by passing pointers while information flows across address spaces are imple- mented by message passing. The model and implementation allows an application and the underlying hardware infrastructure to be changed relatively easily. The paper describes an application implemented in this way.