Which common test objective is achieved by verifying the test basis while designing tests?

Verifying the test basis while designing tests helps in identifying issues in requirements or specifications before they are implemented, thus contributing to the prevention of defects. By cross-referencing the test basis—such as requirements, design documents, and other project artifacts—test designers can spot inconsistencies, ambiguities, or gaps in the information. This proactive approach ensures that fundamental quality issues are addressed early in the development process, decreasing the likelihood of defects making it to later stages of development or into production.

This method not only focuses on what to test but also helps in ensuring that the tests align well with the intended function and behavior of the software as defined by its specifications. Consequently, verifying the test basis is a critical step in laying the groundwork necessary to prevent defects from occurring in the first place.