Modern aircraft require complex systems of complementary sensorsfor the achievement of precise and dynamic on-line flightmeasurements. For the computation, transmission and storage of sensordata a distributed information system is needed which has to respecthard real-time demands. In this paper the demands of an aircraftsensor system on the components of the distributed information systemare analysed allowing the allocation and partitioning of the tasks tothe resources. Simulation experiments are used to investigate thereal-time behaviour of the whole information system, consisting ofseveral RISC-processors, DRAMs and bus systems. The bus systems aredivided into parallel and serial buses; the Serial field bus systemis realized by PROFIBUS. The real-time behaviour of PROFIBUS isadditionally Analysed by hardware experiments.
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