What is a key factor in requirements-based testing?

In requirements-based testing, the primary focus is on creating test cases that directly reflect the requirements and specifications set for the software. This approach ensures that the tests validate whether the system meets the agreed-upon requirements and functionality described in the documentation. By designing tests based on requirements and conditions, testers can ensure comprehensive coverage and effectively identify gaps, inconsistencies, or inaccuracies in the implementation.

Establishing a clear linkage between requirements and test cases is crucial because it allows for traceability throughout the testing process. When the tests are derived from the specific requirements, it becomes easier to understand the purpose of each test and to demonstrate that the software behaves as expected under various conditions. This method enhances the effectiveness of testing and increases the chances of delivering a quality product that meets user needs.

The other options focus on different aspects of testing that may not align with the core principle of requirements-based testing. For instance, documenting all potential bugs, automating all test cases, or focusing solely on graphical user interfaces does not inherently ensure that the tests are aligned with requirements, which is essential for this testing paradigm.