Pass/Fail Rate
Pass/fail rate is the percentage of executed test cases that passed versus failed in a given test run or cycle — one of the simplest, most immediately understandable testing metrics, commonly used as a quick health signal for a build or release.
The metric is easy to compute and easy to misread — a 98% pass rate sounds excellent until you notice the 2% failing includes every critical payment flow test, while a 90% pass rate with only cosmetic failures might represent a perfectly releasable build. Raw pass rate alone doesn't communicate which tests failed or how much they matter.
For this reason, pass/fail rate is most useful as a quick, at-a-glance triage signal — "did this run go badly enough to investigate at all" — rather than as the final word on release readiness, which needs the actual failure details and severity, not just the aggregate percentage.
