Abstract: Avionics system rectuires aviation tasks to obtain more comprehensive capabilities. A deep analysis was made on the requirements of avionics system software, the definition of the Framework for Evaluating Avionics System Capabilities was proposed. The comprehensive capabilities evaluating was firstly introduced into the integrated avionics system, and the framework of the capabilities evaluating was established. Based on these, the analysis and comparison of the current interface specifications were presented and the evaluation result of these specifications was illustrated. It is benefit for the improvement of the reusable,transplantable,secure and available capabilities of the avionics system software to combine the merits of the several specifications.

Key words: Integrated avionics system, ARINC653，ASAAC, APEX, APOS