How to calculate the bug rate?

Showing Answers 1 - 9 of 9 Answers


  • Oct 11th, 2006

We can calculate the bug rate by depending up on number of test cases passed and the decreased in the rate fall of bugs.

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Chakrapani Anumula

  • Oct 11th, 2006

Calcution of how many bugs you found from your Test Cases. Test Cases = 100Bugs Founded = 10Bug Rate = 10%

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  • Jan 5th, 2007

To make it more clear...

Bug Rate:

No. of Test Caeses Executed / No. of Test Cases failed

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  • Jan 18th, 2007

Shouldn't it be the reverse???


No.of test cases failed / No.of test cases executed

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  • Jan 22nd, 2007

He is saying in percentage and u r saying in fraction, makes the answer one and the same.So both are right.

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  • Aug 2nd, 2011

This one is right:

Bug Rate=No. of Test Caeses Executed / No. of Test Cases failed

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Imran khan

  • Jan 5th, 2012

Bug rate= No of step test case executed/ No of Fail step

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  • Mar 15th, 2012

Bug rate = No. of bugs in a given module/Total number of bugs in a project

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Prafulla Sutradhar

  • Sep 18th, 2012

If you say , Bug rate = total bugs found in software/ total test case exicute in software.
total bugs found
bug rate % that means ,rate%=---------------------------*100 . (10/1000)*100=1%
total test cases run

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