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Robin Clark 2010-11-08 19:07:03 +00:00
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fmmd_concept/fmmd_concept.tex
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@ -243,7 +243,7 @@ on SYSTEM level errors which have been investigated.
The investigation will typically point to a particular failure
of a component.
The methodology is now applied to find the significance of the failure.
Its is based on a simple equation where $S$ ranks the severity (or cost \cite{fmea}) of the identified SYSTEM failure,
Its is based on a simple equation where $S$ ranks the severity (or cost \cite{bfmea}) of the identified SYSTEM failure,
$O$ its occurance, and $D$ giving the failures detectability. Muliplying these
together,
gives a risk probability number (RPN), given by $RPN = S \times O \times D$.