Failure Mode & Effects
Analysis (FMEA) is a method for evaluating
risk. Each potential failure mode is evaluated
for:
S: the severity of the
consequences if it does occur
O: the probability of
occurrence
D: the probability of
detection before shipping.
Each of these is rated on a scale from
1 to 10, and the three values multiplied
to find the Risk Priority Number (RPN).
If the RPN is above a specified threshold,
action is taken to reduce it. The FMEA is
often used as the basis for the 'Control'
stage in a Six
Sigma project.
See also Design Failure Mode and Effects
Analysis, DFMEA.
