Which pairs of approaches are most likely used when developing a test strategy?

The combination of the test specification approach and the failure-based approach is relevant in developing a test strategy because both methods focus on different yet complementary aspects of testing.

The test specification approach involves defining test cases and scenarios based on the functional specifications of the system. This method ensures that all functionalities are covered according to the provided requirements, making it a systematic way of identifying what to test based on predetermined specifications.

In contrast, the failure-based approach targets potential defects by analyzing existing failures or faults in similar systems, leveraging historical data to inform testing endeavors. This approach emphasizes risk and prioritizes testing based on the likelihood of failure occurrence, rather than solely on defined specifications.

Using both approaches together allows for a comprehensive test strategy. The test specification approach ensures thorough coverage of all specified requirements, while the failure-based approach helps to identify high-risk areas that may require additional focus. This synergy maximizes the effectiveness of the testing process by balancing thoroughness with risk management.