The TMMi provides a full framework to be used as a reference model during test process improvement. It does not provide an approach for test process improvement such as the IDEAL (Initiating, Diagnosing, Establishing, Acting, And Learning) model [IDEAL]. Practical experiences have shown that the most powerful initial step to test process improvement is to build strong organizational sponsorship before investing in test process assessments. Given sufficient senior management sponsorship, establishing a specific, technically competent test process group that represents relevant stakeholders to guide test process improvement efforts has proven to be an effective approach. More details on the improvement approach are provided in annex B. Some other ideas and guidelines regarding an approach for test process improvement can be found in “The little TMMi” [Veenendaal and Cannegieter].