A safety analysis research of resource process integration for IMA system

Modern avionics systems benefit a lot from integration which in return increases the system complexity and safety problems. The hazards existed in IMA have been considered from the prospects of resources allocation/ scheduling while the resource process integration is ignored. The existing analysis methods, proposed by the ARP4761, cannot analyze the data interaction problems among functions. The article researched the concept of resource operation process reuse, summarized its safety problems, and provided a preliminarily safety analysis framework. Systems-theoretic process analysis is modified in this paper to account for the problem that emerges when applications share the same resource operation and its results.