What is the primary purpose of deriving test cases in RSI Phase 5?

The primary purpose of deriving test cases in RSI Phase 5 is to verify that all aspects of requirements are covered. This phase focuses on ensuring that every requirement specified in the project has been accounted for in the testing process. By systematically deriving test cases from requirements, the testing team can ensure that the software being developed meets the intended specifications and functions as expected.

This process helps in identifying any gaps in requirements or potential areas that may not be adequately tested, thereby enhancing the overall quality of the software. Ensuring full coverage of requirements also mitigates the risk of unexpected behaviors or failures once the software is deployed, making it critical to the success of the project.

Other options, while relevant in different contexts, do not capture the core goal of this phase as effectively as verifying requirement coverage does. For instance, creating extensive test documentation may be a byproduct of the test case derivation process but is not the primary aim. Similarly, improving the software development lifecycle, while important, is a broader concept that spans beyond just the derivation of test cases. Minimizing testing time is often a goal in testing practices; however, thorough verification of requirements often necessitates a comprehensive approach which may vary in time and scope.