Which phase od DMAIC is designed to insure that the problem does not reoccur and that new processes can be further improved over time?

The phase of DMAIC designed to ensure that problems do not reoccur and that new processes can be improved over time is the Control phase. This phase involves implementing monitoring systems and controls to sustain improvements and maintain the gains achieved. It also includes developing standard operating procedures and training staff to adhere to these processes. Continuous improvement practices may be introduced to further enhance the process over time.