Service Level Objective (SLO)

Definition

A Service Level Objective (SLO) is a measurable reliability target for a service, such as uptime, latency, or error rate over a defined period.

Why it Matters

SLOs help organizations:

• Align engineering and business expectations.
• Prioritize reliability work with clear targets.
• Make risk tradeoffs visible through error budgets.

How to Use It

• Define SLOs around user-facing journeys.
• Track compliance continuously in dashboards.
• Use SLO misses to trigger incident and improvement actions.

Learn More

• Supporting concept: Observability
• Incident workflow: Blameless Postmortem