Severity Levels
MTTR
Incident Severity Levels: How to Define SEV0, SEV1, SEV2, and SEV3
Two engineers look at the same production alert and disagree on whether it's a SEV1 or SEV2. One wants to wake up the VP of Engineering. The other wants to handle it quietly. Both are wrong - not because of their technical judgment, but because their organization hasn't defined what SEV1 means clearly enough for two people to reach the same answer from the same data.
Jasmine Decker