Re: Simple Representation for Scope of DFMEA and PFMEA
Typically Design FMEA is used to analyze products before they are released to production. It focuses on potential failure mode associated with FUNCTION of a product caused by DESIGN.
Process FMEA is used to analyze manufacturing and assembly processes, It focuses on potential failure modes associated with the FUNCTIONS of a process caused by DESIGN and OPERATION.
Just for further clarification:
Take example of shaft, for which desired function is to transfer the energy from one form to another.
FUNCTION : The characteristics which can only be realized after the application. i.e. Intended function after application (How well it fulfills the requirements after use)
PRODUCT CH. The Characteristics which can be realized (or measured) only after manufacturing but before final application. i.e Length, height, Width etc
PROCESS CH. The Characteristics which can be realized only during the manufacturing process. i.e Speed, Feed rate, Coolant Concentration,
This is how we use this methodology in Mechanical Industries, I am not sure about applicability to your organization / Process