Term Kind Topic What it is
On-Call practice On-Call The rotation that responds to production problems — a system whose health is measured by whether the people in it can sustain being in it.
Page Budget Pages Per Shift, Alert Budget metric On-Call An explicit ceiling on how many pages a shift may generate, treated as a limit the team manages against rather than as an outcome it observes.
Sustainable On-Call practice On-Call An on-call arrangement whose alert volume, rotation size and compensation allow it to continue indefinitely without degrading the people in it.