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Structural coverage analysis (SCA – also referred to as code coverage) is an important component of critical systems development. Many standards/ guidelines including DO-178C and ISO 26262 recommend or mandate the use of coverage analysis for measuring completeness of testing. In some situations, however, it is difficult to achieve complete (100%) coverage.What are these situations, and what can we do about them?
In this white paper, we review the causes of being unable to attain 100% code coverage during testing, and will identify four strategies for handling code that has not achieved full coverage.