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Idaho State University

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Essentially Rating
  • An importance-time-related designation assigned to a computer application that indicates when an application must be back in operation to avoid mission impacts after a disaster or interruption in computer support services at a multiuser installation. To facilitate prioritized recovery procedures and for operating at offsite backup facilities in a degraded mode (i. e. , only most essential applications), computer applications should be assigned essentiality ratings of varying importance (e. g. , most essential, essential, important, defferable). Applications with the same essentiality rating (i. e. , most essential) should be additionally ranked (e. g. , numerically) according to installation or site determined processing priorities and perceptions of importance. (DOE 1360. 2A)