Defect Escape Rate
What Is Defect Escape Rate?
Defect Escape Rate measures how many defects are found after release instead of being caught earlier during development, review, or testing.
Why Defect Escape Rate Matters
It helps teams understand:
- release quality,
- test effectiveness,
- how much risk escapes into production,
- where prevention controls are weak.
How Oobeya Uses Defect Escape Rate
In Oobeya, defect escape rate is relevant as a downstream quality indicator. It becomes more valuable when read together with Change Failure Rate, Xray, and SonarQube.


