Service management - Measure
SLI
(Service Level Indicator)
A measured number showing how a service is actually performing against an important target
What's it for?
Provides the actual measurement used to judge whether a service is performing as expected.
For example…
The team measures the percentage of login attempts that succeed.
Request success rate is an SLI if the team uses it to measure whether the service is meeting its reliability target
Think of it like…
Bathroom scale for a weight goal: the indicator is what you read; the objective is the target number