What is a 'test harness' in the context of RSI Phase 5?

A 'test harness' in the context of RSI Phase 5 refers to a collection of software and test data designed to control the execution of tests during the testing phase. This means that it allows testers to automate testing processes, define the conditions under which tests will be conducted, and collect results from the execution of those tests. The test harness helps ensure consistency, reproducibility, and efficiency in the testing process by providing a structured environment where specific scenarios can be evaluated systematically. This often includes the necessary setup to run tests, pass in required inputs, and capture relevant outputs for evaluation against expected results.

The other options focus on aspects that do not encompass the full role of a test harness. For instance, generating test data alone does not cover the broader functions, such as controlling program execution or managing test configurations. A budget estimation tool speaks to financial planning, not the technical execution of tests, and a framework for managing team roles pertains more to project management than to the direct testing process itself.