Industry Best Practice values are given to these parameters. The Terms RTO, RPO, HA, DR, and OR are defined and seeded - along with the "SLA" - within the attribute and treatment" parameters" at the appropriate Levels. The Standard’s Model is based on abstracted definitions of “service” and "service tier" (with their associated "systems") then the model addresses the more concrete corresponding attribute/treatment "parameters" of the "Service (and associated systems) Tier" at each level (view) of the organization based on the viewpoint of the stakeholder at each of these levels. The purpose is to provide a Service Tiering Standard based on the Service’s description, characteristics and outage impact as well as a standard for determining the corresponding treatment parameters of Performance, Availability & Recoverability the corresponding Service Assurance Level or Service Level Agreement (SLA) and the corresponding Risk Tolerance & Acceptance parameters.
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