Bug Leakage

Shishpal Dahiya Shishpal Dahiya

Shishpal Dahiya

Software Testing Technical Lead | Immediate Joiner

发布日期: 2024年5月14日
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A defect identified by the client isn't termed as 'defect leakage'; rather, it's referred to as a bug or defect.

Defect leakage, a crucial metric in software testing, measures the ratio between the bugs discovered during testing and those encountered by the customer in the production environment.

The formula for calculating the Defect Leakage Ratio is as follows:

Defect?Leakage?Ratio=Number?of?Defects?slippedNumber?of?Defects?raised?Number?of?Defects?withdrawn×100Defect?Leakage?Ratio=Number?of?Defects?raised?Number?of?Defects?withdrawn number?of?Defects?slipped×100

Let's apply this formula to an example scenario in production:

Number of Defects slipped raised by the client = 21

Number of Defects raised by the tester = 267

Number of Defects withdrawn = 17

Plugging these values into the formula:

Defect?Leakage?Ratio=21(267?17)×100Defect?Leakage?Ratio=(267?17)21×100

Defect?Leakage?Ratio=21250×100Defect?Leakage?Ratio=25021×100

Defect?Leakage?Ratio=0.084×100Defect?Leakage?Ratio=0.084×100

Defect?Leakage?Ratio=8.4%Defect?Leakage?Ratio=8.4%

Thus, in this example, the Defect Leakage Ratio is calculated as 8.4%. This indicates that 8.4% of the defects identified during testing transitioned into the production environment."

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