Events/incidents are single events or occurrences that happen, especially one that is particularly significant, that results in a failure from an non-aging mechanism for reliability purposes. Usually the event/incident result in a serious consequence of the loss of functional life of a component or system. The death of the device must be recorded as censored (suspended) data.
Why: For reliability purposes, failure of the component, device, subassembly, or system has been a success up to the point in life where a failure from a non-aging event too place. This means the event-age was a success (up to the point it was killed by an event/incident) and inclusion of the data is required as censored/suspended data-this is important data.
When: Include the suspended/censored data into every analysis. Young suspensions/censored data have little impact on the results of an analysis but old suspensions have major effect on the analysis.
Where: The data is used for MTBF/MTTF analysis and particularly for Weibull analysis.
These definitions are written by H. Paul Barringer and are also posted on his web site at www.barringer1.com
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