While the basic steps for conducting an FMEA are the same regardless of the focus of the FMEA, some of the tactics are different if it is a DFMEA or PFMEA. This table highlights the key differences between the two.
|Primary Objectives||To uncover potential failures associated with the product that could cause:
||To uncover potential process failures that can:
|The basis of the review||A blueprint, detailed product schematic or prototype.||A process flowchart or detailed traveler.|
|How potential failures of intended functions are evaluated||Identifying and assessing potential risks of the design requirements.||Identifying and assessing potential risks with process operating parameters and meeting product specifications.|
|The evaluation criteria for Detection ratings usually focuses on:||An evaluation of the ability of design controls (related to the product or process) to prevent or detect mechanisms of failure.||An evaluation of the ability of process controls (mistake-proofing, fail-safes, gages) to prevent a failure mode (or cause) from occurring or detect the effect of a failure if a failure has occurred.|
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