| Reliability
Metrics |
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| • Probability of
failure on demand |
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| • Rate of failure
occurrence (failure intensity) |
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| • Mean time
between failures |
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| • Availability (up
time) |
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| •
Mean time to repair |
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| • Distribution of
failures |
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| Hypothetical
example: Cars are safer than |
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| airplane
in accidents (failures) per hour, but less |
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| safe
in failures per mile. |
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| 4 |