Six Sigma Black Belt Practice Exam 2026 – Complete Prep Resource

The primary goal of the Control phase in the DMAIC (Define, Measure, Analyze, Improve, Control) methodology is to sustain the improvements made during the project and ensure consistent quality in the output of the process. This phase involves implementing control systems that monitor the process performance over time, ensuring that any deviations from the desired performance can be quickly identified and addressed.

In this phase, teams may develop control plans and standard operating procedures, as well as utilize tools such as control charts to help maintain the gains achieved through earlier phases. By doing so, organizations can prevent deterioration of the process and make certain that improvements are stable and sustainable in the long term.

The emphasis on sustaining improvements and ensuring consistent quality is crucial in any Six Sigma initiative, as it not only validates the effectiveness of the solutions implemented but also solidifies a culture of continuous improvement within the organization.