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tc:Availability (EasyRdf\Resource)
rdf:type skos:Concept, od:LippertGlossaryEntry
skos:prefLabel "Availability"@en
od:hasLippertNote "The simplest representation of availability is as a ratio of the expected value (E) of the uptime of a system to the aggregate of the expected values of up and down time: A = E_{uptime}/(E_{uptime} + E_{downtime}) (1) Classification of availability is based on the span of time to which the availability refers and to the type of downtime used. Common classifications include instantaneous, mean, steady state, inherent, achieved, and operational."@en