In avionics systems, this modular approach is being enhanced by open architectures and standards such as Joint Communications Architecture (JCA), Open Mission Systems (OMS), Hardware Open System Technologies (HOST), Vehicular Integration for C4ISR/EW Interoperability (VICTORY), and Future Airborne Capabilities Environment (FACE). Due to their complexity, these systems are required to be modular, with different subcomponents developed by teams or subcontractors working largely with minimal interaction. The development of these systems must support nominal interaction behavior and be resilient to errors with the ability to safely switch to fault tolerant recovery modes. Aviation systems, in particular, demonstrate significant complexity given complex patterns of real-time interaction between mission system software components interacting across complex hardware architectures with safety and cybersecurity critical operation. OBJECTIVE: Develop unified behavior formalisms and tools for virtual integration of architectural models and tools from segmented behavior specifications of embedded computing systems using multiple formalisms.ĭESCRIPTION: Cost overruns are a persistent problem with complex cyber-physical systems such as modern aircraft, automobiles, and medical devices.
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