Daily Term: SLI

SLI

A Service Level Indicator (SLI) is a measurable metric used to evaluate a system’s performance, often tied to an SLO. For example, an SLI for an API might be the percentage of requests completed within 100ms. SLIs are collected through monitoring tools and used to assess whether SLOs are met, such as tracking error rates or latency. SLIs provide concrete data for reliability but require selecting meaningful metrics that reflect user experience.

Date: 2025-09-13