PFMEA Process failure mode and effect analysis are used to analyze and keep in check the control objectives of a process.
A PFMEA is performed on a process and not on a product; for the latter, you do DFMEA.
The central component of a PFMEA is the PFMEA Worksheet, which can look very similar to a DFMEA Worksheet.
In the first columns of a PFMEA Worksheet, you will break down the steps of your process instead of the components of your product as you would in a DFMEA.
You then follow the same steps you would in a DFMEA procedure:
PFMEA BREAKDOWN
- Identify all potential failure modes of the process steps
- Determine the effects
- Perform a risk assessment
- Define a plan for recommended actions for risk mitigation.