Six Sigma DMAIC Process - Control Phase - Review and Sign-off

The project gets closed when defect reduction is demonstrated over a significant period of time. Black belt and master black belt agrees on time period needed to collect and analyze data. If improvement is not confirmed, project will be reopened. The problem is “turned off” with confirmation run (and “turned on” when old process is used again).

The idea of “on-off” is key. We don’t want shift and drift caused by other variables to lead to a wrong decision. Project financial scorecard signed by six sigma champion, black belt, deployment leader, finance manager, process manager, and functional head. The leadership team agrees with the stated benefits.

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