When performing requirements-based testing, what is primarily utilized?

Requirements-based testing primarily utilizes test objectives and conditions that are derived from the requirements of the product being developed. This approach ensures that tests are aligned with what the stakeholders expect the system to accomplish, thereby directly verifying that the implemented features meet specified requirements.

When conducting requirements-based testing, the goal is to create test cases that cover functional and non-functional requirements comprehensively. By focusing on requirements, testers can ensure that each feature is validated against predefined criteria, which ultimately contributes to higher quality and user satisfaction with the final product. This method also allows teams to identify any gaps in requirement coverage, ensuring that all aspects of functionality are tested appropriately.

While other options, such as defects from previous versions, feedback from user acceptance tests, and historical project metrics, can provide valuable input for the testing process, they do not serve as the primary basis for requirements-based testing. Instead, such information can complement the requirements by providing insights into potential areas of concern or improvement, but they do not replace the necessity of deriving test objectives directly from the current requirements.