what is defect density

Answer Posted / iqubal

Defect Density
Defect Density Definition
Defect Density is the number of confirmed defects detected
in software/component during a defined period of
development/operation divided by the size of the
software/component.
Elaboration
The 'defects' are:

* confirmed and agreed upon (not just reported).
* Dropped defects are not counted.


The ‘period’ might be for one of the following:

* for a duration (say, the first month, the quarter, or
the year).
* for each phase of the software life cycle.
* for the whole of the software life cycle.

The ‘size’ is measured in one of the following:

* Function Points (FP)
* Source Lines of Code


Defect Density Formula

Defect Density Uses

* For comparing the relative number of defects in
various software components so that high-risk components can
be identified and resources focused towards them
* For comparing software/products so that ‘quality’ of
each software/product can be quantified and resources
focused towards those with low quality.

Is This Answer Correct ?    7 Yes 7 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is a bug life cycle?

600


What is crud testing and how to test crud?

619


We have a WISPr application making an authentication request to a server running an authentication module. The client application is sending the User--Agent value, but the authentication application logs the User-Agent value as null, please explain the steps i should take to troubleshoot the issue. Please mention the steps by applying your knowledge of the OSI model.

1734


Hi I m working as a sqa engineer and after 1 yr i want to switch to system analyst side kindly tell me how both fields relate each other and is this easy to switch job from qa to system analyst and what's the difference b/w both fields.

1568


Define bug leakage and bug release?

769






How is retesting different from regression testing?

580


If there are more number of production defects, how will you tackle the team as a lead

2037


can 2 tier architecture can be change as a 3 tier architecture

1590


Hello Can anyone please share the interview details for QA positions in Tribal Fusion, Noida. Much Thanks

2066


In case you have any doubts regarding your project, how do you approach?

599


What is cross browser testing?

590


What are verification and validation and difference between these two?

597


Explain functions of quality assurance department.

655


What are the different verification techniques you know?

582


a proj ws atarted and cloded within the second day why?it has good amt of resources.srs ws prepers and accepted by the client too.

1689