What is the primary aim of the Control phase in DMAIC?

The primary aim of the Control phase in DMAIC is to maintain improvements in the process. This phase comes after implementing solutions and is crucial in ensuring that the gains achieved during the Improve phase are not lost over time. The Control phase involves monitoring the process to ensure it continues to function effectively, using various tools and techniques to track performance metrics, and implementing control plans. This helps to identify any deviations from the desired outcomes, allowing for timely corrective actions to be taken.

The focus on sustaining improvements is essential because it ensures that the benefits of the Six Sigma project are realized in the long term, fostering a culture of continuous improvement within the organization. It involves documenting the processes and the changes made, training staff on the new methods, and regularly reviewing performance metrics to maintain the desired results.