
Create a Control Plan
To facilitate continued success, Six Sigma teams should create a written control plan for the process owner.
The purpose of a control plan is to help the process owner and business team track and respond to key performance indicators so that the process remains improved.
The control plan should be a concise, easy-to-reference document that tells the business team when to monitor, how to monitor, what range of data is acceptable to the monitor, and how to respond with corrective action if the range measured is not acceptable.
Common elements of a control plan include:
- Company, division, or department name
- Name of person who created the plan
- Date the plan was created
- Name of the person who last edited the plan
- Date the plan was last edited
- Project and/or process name or identifier
- Process owner
- List of process steps where control action is required
- CTQ or metric associated with each action required
- Limit specifications or the acceptable range of measurements
- The unit of measurement
- The method of measurement
- The necessary sample size
- The frequency of measurement
- The person responsible for measurement
- Where the information is recorded
- Correction actions
- Associated policy and procedure documents
