+A **Service Level** defines the agreed-upon standard of a service, a clear promise between provider and user. It quantifies expected [Performance](/wiki/performance) and [Quality](/wiki/quality), ensuring an understanding of what success means. This crucial benchmark guides operations and customer satisfaction.
+## See also
+- [SLA](/wiki/sla)
+- [Availability](/wiki/availability)
+- [Reliability](/wiki/reliability)
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