Tessy, the tool for automated unit / module / integration testing of embedded software, is now qualified for safety-related software development according to IEC 61508 and ISO 26262 (up to ASIL D). Tessy fulfills the requirements for off-line support tools according to IEC 61508-3:2010. Tessy was classified as being class T2. Tessy also meets the requirements of tool qualification according to ISO 26262-8 for all Automotive Safety Integrity Level. For the Tool Impact the value 2 was determined and the Tool Error Detection Level was assumed to have the value 3, what results in the Tool Confidence Level having the value 3. The respective certificate was issued by the TÜV SÜD in December 2011. Due to the established processes related to change management and release procedure it is guaranteed that all upcoming versions will be qualified also. The certificate for Tessy is the first certificate issued by the TÜV SÜD for the final version of ISO 26262 (and not for the FDIS).
Having a certificate eases the tool qualification process for Tessy users significantly, but does not make it trivial. The tool qualification stays in the responsibility of the user and needs – where required – complementary measures. To assist the user in such additional measures an optional Tool Qualification Package is available. This package contains documents and test cases such as the tasks Tessy accomplishes during the testing process and rates these tasks with regard to safety-related projects; the test cases are especially designed to check the tasks relevant for safety-critical projects. Tessy is supplied by Hitex Development Systems.
