One of the most popular SLAs in the software testing discipline is the DRE, why? well, because it measures our own effectiveness as area & process. In my own experience it has been used in large companies to measure the effectiveness of all testing done since unit test, integration test, function test, UAT and production, in that way you can measure what was not found on all these testing phases.
The formula to measure this indicator is:
DRE = (Defects found in my testing phase) / (Defects found in my testing phase + Defects not found in my testing phase)
Enjoy it !
1 comment:
Thanks for the post on this topic.A more powerful metric for test effectiveness (and the one that we recommend) can be created using both of the defect metrics discussed above: defects found during testing and defects found during production. What we really want to know is, "How many bugs did we find out of the set of bugs that we could have found?" This measure is called Defect Removal Efficiency (DRE).
for more in depth analysis I recommend you to check the following link:
How to avoid missing defect in Software Testing?
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