According to the ‘German Duden’, conformance means ‘in agreement, in accordance with’ (from Late Latin conformitas – similarity). Any check on compliance of a test item with its specification can therefore be regarded as a conformance test. A conformance test has been established in the field of networked systems. Components from different manufacturers work together and only error-free communication under all conditions enables such interoperability.
Two points are of major importance in the implementation of conformance testing:
- A conformance test ‘can only be as good as the specification of the test item’. If the specification is incorrect or has gaps, the statements that are derived from the test results will be inaccurate or incomplete.
- A conformance test ‘can only be as good as its test specification’: Test cases are defined for a complete conformance test. A good test specification contains the definition of test cases which includes all the key requirements for a test item.
We are aware of the importance of these issues and take appropriate measures in reference to these issues.
Background information on the philosophy of testing can be found in the book ‘CAN System Engineering’ by Dr. Wolfhard Lawrenz (ed). More than 40 experts discuss the topic CAN and the issue of testability.
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