What is Site Reliability Engineering (SRE)?
Turkish: SRE (Site Güvenilirlik Mühendisliği)
SRE applies software engineering to reliability work, including automation, incident response, capacity planning, and service targets.
What is Site Reliability Engineering (SRE)?
Site Reliability Engineering applies software engineering to operations problems. The goal is not only to keep systems online; it is to manage reliability through measurable targets, automate repeated work, and turn incidents into lasting system improvements.
SRE teams define SLIs and SLOs, use error budgets, run on-call processes, plan capacity, and focus post-incident reviews on system learning rather than blame. Observability data brings metrics, logs, and traces together to support those decisions.
Relationship to DevOps
DevOps describes a culture and set of practices for collaboration between development and operations. SRE provides a more measurable operating model for the reliability side of that culture. Not every company needs a separate SRE team; in smaller organizations, SRE practices may be shared by platform and product teams.
The business value of SRE is managing outage risk for critical services and moving teams out of constant firefighting. Making every system 100% available is neither technically nor economically realistic. SRE manages the tradeoff between reliability targets and product delivery with explicit metrics.
Related Terms
DevOps aligns software development and operations through shared processes, automation, metrics, and more reliable delivery.
ObservabilityObservability is the ability to understand a system's internal state from its external outputs (logs, metrics, traces) — a key DevOps principle.
SLI and SLOSLIs and SLOs define measurable service signals and the reliability targets teams commit to for those signals over time.