The FMEA Process
The objective of a FMEA is to look
for any and all ways a product or process can fail. It starts with the assumption
that something can and will go wrong, so let's fix it before it does. Even the
simplest products can fail, or the user can make a mistake.
Failure modes are ways in which a
process or product can fail. Each failure mode has a potential effect, and some
are more likely to occur than others. Each potential effect has an associated
relative risk. The FMEA process is a way to identify the failures, effects,
and risks, and then reduce or eliminate them.
Three factors determine the relative
risk of a failure and its effects. First is severity of the consequence of failure,
should it occur. Second is the probability or frequency of the failure occurring,
or occurrence. Third is detection, or the probability of the failure being detected
before a negative impact is realized.

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