What is defect leakage?

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GEETHASREE

  • Oct 18th, 2005
 

defect leakage defines the time gap between defect found to defect resolved

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Amit Gargotikar

  • Nov 19th, 2005
 

Hi,

   defect leakage in simple terms mean, defect Found\reproduced by Client\User's which the tester was unable to re-produce

 

leonandini

  • Jan 11th, 2006
 

As per my understanding,

Testing Efficiency = Issues found by testing team * issue weightage/
([Issues found by testing team * issue weightage] + [Issues found by
Clients * issue weightage]) * 100
and therefore, Defect Leakage = 100 - Testing Efficiency

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Pankaja

  • Feb 27th, 2006
 

I do not agree to all the answers given.

In SDLC, there are various stages, thus whenever there is any defect in earlier phase( say design) which is not idntified, this leads to defect in coding phase, which in turn leads to defect in the entire system.

Thus defect is passed on from the design phase to the testing phase.This is known as defect leakage.

santosh

  • Apr 6th, 2006
 

exellent

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sunitha

  • Feb 6th, 2007
 

I agree with Pankaja , that is what even i have read in ISO Process books too.

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N.SRIDHAR

  • Mar 6th, 2007
 

When the defect is not detected and it is detected in later stage, the rework will take more time. this is defect leakage

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Pattabiraman.A.C

  • Jun 20th, 2007
 

If a defect left undetected in one level of testing and found during some other level of testing is called as "Defect Leakage". (i.e.) When a defect left undetected during integration testing and was found during system testing that is called defect leakage.

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shravaa

  • Jul 12th, 2007
 


When there is a defect which is un-noticed and proceeds to the next phase of the life cycle, the defect is said to be leaked from the earlier ones.

Defect leakage is one other factor which can help in finding the efficiency of the testers.

Usually, when there is a defect in the requirements and it is not found, it is said to be leaked to the Design phase. While calculating the cost, to resolve the defect which has leaked right now, it would cost 10x where as the cost to resolve it in the requirement phase is x. The cost to resolve it increases 10 times for every phase the defect leaks.

The cost to fix the defect is the max when it is found during the maintenance.

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