Control Plan

A Control Plan is the key to sustaining the gains from a Six Sigma project. A Control Plan exists to ensure that we consistently operate our processes such that product always meets customer requirements as it ties together the elements of Six Sigma improvement activity. it allows Champions and other stakeholders to have confidence that the process improvements made will be robust. The Control Plan is a guide for the Process Owner to assist in tracking and correcting the performance of the KPIV’s and KPOV’s.

It is used to develop a detailed but simple document to clarify the details around controlling the key inputs and key outputs for which all the improvement efforts have implemented. Once the project is closed it is not necessarily over. The Control Plan is one part of ensuring the gains are maintained. If process performance strays out of control there are details and tools to adjust and re-monitor to ensure there has not been an over adjustment.

The intent of an effective Control Plan Strategy is to:

• Operate our processes consistently on target with minimum variation
• Minimize process tampering (over-adjustment)
• Assure that the process improvements that have been identified and implemented become institutionalized
• Provide for adequate training in all procedures
• Include required maintenance schedules

Control Plan inputs includes all processes, measurement systems and resources that need to be monitored and controlled. The plan should be developed by the project team in conjunction with those who will be responsible for the day to day running of the processes. The plan should be validated and then be subject to regular review, as part of the overall management system.

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