Automated derivation of test requirements for systems of systems

Testing of Systems of Systems (SoS) is challenging and improving its cost-effectiveness is a relevant research topic. In this paper, we propose TESoS (Test Engine for Systems of Systems), a systematic approach that selects from SoS models, defined in mKAOS language, the functionalities to be tested and then automatically derives a set of test requirements. TESoS allows to classify test requirements according to unit, integration, and system testing levels. Moreover, it helps test planning by providing the tester with automated facilities for supporting the unit testing of constituent systems and computing the percentage of test requirements that are satisfied with a given test suite. We illustrate the TESoS application on an SoS case study in the educational domain