Service Level Objective (SLO)

Definition

A target for an SLI over a period (e.g., 99.9% availability over 30 days).

Why it matters

SLOs align teams on acceptable reliability and trade-offs between speed and stability.

Common pitfalls

• Setting SLOs without business input.
• Too many objectives to act on.

References

• Google SRE Workbook
• manual/04-platform-engineering/index.md