On-call, incident response, and incident management are three different stages of the reliability lifecycle. This guide maps the SRE Trinity from first alert to long-term improvement.
Spend enough time in DevOps and you'll hear terms like on-call, incident response and incident management thrown around like hot potatoes. Stay there long enough and you'll learn that they're all just different ways of saying "something went wrong."
They all orbit the same realm of chaos but where many companies go wrong is treating them as synonyms. They end up with alert fatigue, confused responsibilities, processes that feel like they were designed by someone in a coma and a team of engineers wishing they were.
The truth is simple: On-call, incident response and incident management are three completely different stages of the incident lifecycle.
Three different jobs, three different mindsets.
