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Reducing Warranty Claims
by Reliability Improvement
Reliability is dened as the probability that a device will perform its
intended function during the specied period of time under the specied
conditions. Mathematically, this may be expressed as a percent probabil-
ity, or as the expected failure quantity rate. It may also be expressed as
average elapsed time to failure or time between failures.
ere are a few key elements of this denition. Performance is the exhi-
bition of the proper functioning of the product. It is the specied function.
is function may be specied by whoever has design authority, either the
manufacturer or the cu