Minimum time for systems availability spec?
Minimum time for systems availability spec?
(OP)
When writing a requirement for system availability, is there a minimum time period that should be specified for statistical significance?
For example, "The ABC system shall provide 99.95% availability, per quarter." Is "per quarter" too short? Should this be "one year"?
For example, "The ABC system shall provide 99.95% availability, per quarter." Is "per quarter" too short? Should this be "one year"?
RE: Minimum time for systems availability spec?
A = MTBF/(MTBF+MTTR+MLDT)
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