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A formal approach to requirements based testing in open systems standards

Experience with an innovative approach to requirements based testing in the IEEE POSIX arena is presented. The work described in this paper is based on a full scale conformance test suite development for the standard IEEE Std 10035-The Ada Language Binding to POSIX. The approach taken in this work is based on a formal description of test requirements which can be automatically translated into executable tests by the Clemson Automated Testing System (CATS). A brief design overview of CATS, as well as a design taxonomy for the testing requirements is presented. Lessons learned from this experienced recommendations for future work conclude the paper.