A Meta-model for Tests of Avionics Embedded Systems

Tests for avionics embedded systems are implemented using proprietary test languages. No standard has emerged and the set of existing test languages is heterogeneous. This is challenging for test solution providers, who have to accommodate the different habits of their clients. In addition, test exchange between aircraft manufacturers and equipment/system providers is hindered. To address these problems, we propose a model-driven approach for test implementation: test models are developed/maintained, with model-tocode transformations towards target executable test languages. This paper presents the test meta-model underlying the approach. It integrates the domain-specific concepts identified from an analysis of a sample of proprietary test languages. The test meta-model is the basis for building test model editors and templatebased automatic code generators, as illustrated by a demonstrator we developed.