Six Sigma Black Belt Practice Exam 2026 – Complete Prep Resource

The purpose of the "Improve" phase in the DMAIC (Define, Measure, Analyze, Improve, Control) framework is primarily focused on implementing solutions that effectively address and eliminate the root causes of identified problems. During this phase, the insights gained from the previous stages—especially from the Analyze phase—are utilized to develop and test potential solutions.

This step is crucial because it translates analysis into action, allowing teams to develop strategies that can lead to measurable improvements in the process. Through a variety of methods, such as piloting new processes, conducting experiments, or applying Lean concepts, teams aim to refine existing processes or innovate new approaches that yield better results.

The other aspects of DMAIC are distinct in their focus. The Define phase pertains to clearly articulating project goals and identifying problems. The Measure phase is concerned with quantifying the current performance of the process, while the Analyze phase dives deep into understanding the root causes of issues. The Control phase, following Improve, is about ensuring that the solutions are sustained over time and that the process remains stable. Understanding these distinctions clarifies why the Improve phase is specifically centered on the implementation of solutions.