A natural link exists between FMEAs and Control Plans.
The purpose of a Control Plan is to:
- Minimize variation.
- Provide a structured approach for control.
- Establish a well thought-out reaction plan.
- Document and communicate failures and improvements.
- Enhance customer satisfaction.
The primary reason for developing a Control Plan from a DFMEA is to use the DFMEA for setting process control procedures and identifying primary control points for the process the product will be made on.
- A Control Plan linked to the DFMEA provides a structured documentation and communication vehicle for the process control group.
Key components of a Control Plan include the:
- The control factor.
- Specifications and tolerances of control factors.
- Measurement system or technique.
- Sample size and sample frequency.
- Control method.
- Reaction plan.