Which of the following is NOT a part of the Test Implementation and Execution Phase?

The process of test implementation and execution is primarily concerned with activities that occur after the design of tests has been completed. This phase includes the organization and preparation of test cases, their execution, and the analysis of the results obtained from these executions.

Designing tests involves defining the specifics of what needs to be tested, how it will be tested, and determining the specific conditions and expected outcomes. This is a preliminary phase that must be completed before the test implementation can begin. Once tests are designed, the focus shifts to creating the necessary test suites from those test cases, executing them, and then comparing the actual results against the expected outcomes.

Thus, designing tests is not a part of the Test Implementation and Execution Phase, as it occurs beforehand and serves as the foundation for the subsequent activities that are undeniably part of this phase.