R – Reliability
The probability
for any given design or process to execute
within the anticipated operational or design margin for a specified period
of time and under expect operating conditions with a minimum amount of
stoppage due to a design or to process errors, when working under normal
operations through the assume design life of
a product or service.
Some tests for reliability can be MTBF,
(Mean Time Between Failures), ALT,
(Accelerated Life Test using temperature chambers), MTTF,
(Mean Time To Failure), and Chi-Square.
Also see external
failure, common cause, and special
cause.
