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PublicationA Compositional Scheduling Framework for Digital Avionics Systems(2009-08-24) Easwaran, Arvind; Lee, Insup; Sokolsky, Oleg; Vestal, Steve; Easwaran, Arvind; Lee, Insup; Sokolsky, Oleg; Vestal, SteveARINC specification 653-2 describes the interface between application software and underlying middleware in a distributed real-time avionics system. The real-time workload in this system comprises of partitions, where each partition consists of one or more processes. Processes incur blocking and preemption overheads, and can communicate with other processes in the system. In this work, we develop compositional techniques for automated scheduling of such partitions and processes. At present, system designers manually schedule partitions based on interactions they have with the partition vendors. This approach is not only time consuming, but can also result in under utilization of resources.