Measuring Health

September 12, 2021

Service Level Agreement - SLA #

• commitment to maintain an SLI within a specific range over a period of time (including future)

Service Level Objective - SLO #

• average of the SLI over time (past only)
• average of the SLI’s standard deviation over time

Service Level Indicator - SLI #

• is the thing you’re measuring
• ?? a value at point in time