Service level indicator
In information technology, a Service Level Indicator is a measure of the service level provided by a service provider to a customer. SLIs form the basis of Service Level Objectives, which in turn form the basis of Service Level Agreements ; an SLI is thus also called an SLA metric.
Though every system is different in the services provided, often common SLIs are used. Common SLIs include latency, throughput, availability, and error rate; others include durability, end-to-end latency, and correctness.
