What is the Site Reliability Engineering (SRE) term for an organization s desired level of reliability and performance?

A Service-Level Objective (SLO) is a specific, measurable target for a service's reliability, such as '99.9% availability over a rolling 30-day window.' It represents the desired performance threshold that an organization commits to maintaining internally, distinct from the contractual SLA. SLOs drive error budget calculations and reliability work prioritization within the SRE framework.

Enhanced support is a commercial support tier offered by cloud providers, not an SRE reliability measurement term.

Scalable infrastructure is an architectural design principle, not an SRE term for a target reliability level.

A Service-Level Indicator (SLI) is the actual measured metric (e.g., request latency, error rate) used to evaluate performance against an SLO, not the target itself.