chapter 8Control Stage
The final stage of define, measure, analyze, improve, and control (DMAIC) problem-solving methodology is the control stage.
There are several objectives to be completed within the control stage of DMAIC:
• The new methods must become standardized in practice.
• The predicted impact of the improvements, the project deliverables, must be continually verified, especially the financial return.
• Lessons learned should be documented.
Standardize on the New Methods
In the improve stage, changes are made to the process. Frequently, the process procedures will be changed. The old way of doing things is replaced with new and improved methods.
Process variation may have been reduced by controlling the variation in one ...