Ensuring comprehensive test coverage
To ensure that nothing of critical importance is overlooked when designing a suite of tests for your system, it is necessary to approach the design of the tests in a methodical manner. The use of appropriate metrics will tell you how well your tests cover the aspects of the system that require testing.
One important metric is the degree to which the test process assesses system performance against each requirement. Another metric, focused on the software and firmware portions of a system design, evaluates the degree to which the test suite covers the various flows of execution through the code. The next section addresses the coverage of system requirements during testing.
Requirements traceability matrix
A requirements traceability matrix (RTM) is a table that documents the test cases that address each system requirement. By developing an RTM during the test design process, you can determine which of the requirements have been validated...
