Difference between revisions of "Availability (quantitative)"
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Latest revision as of 01:20, 25 February 2009
The probability that a system will be available for operation at an arbitrarily chosen instant in the future. It may be expressed as the ratio MTBF/(MTBF + MTTR).
Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)
Mean Time Between Failures
Mean Time to Repair
International Association of Marine Aids to Navigation and Lighthouse Authorities - AISM