Answer / rashmi garg

defect density is the count of total defects identified
against a particular software entity

it is calculated as...
no of defects/ size of software
where size is typically counted in lines of code

this is used to compare the relative number of defects in
various software components, to find out the defect prone
areas of the application

Answer / sudhakar8

Defect density = Total number of defects/LOC (lines of code)
Defect density = Total number of defects/Size of the project
Size of Project can be Function points, feature points, use
cases, KLOC etc

Answer / paddy

Defect Density is "amount of defects found in total length
or size of program code"

Defect Density = amount of defects/length or size of program
code

Answer / rajesh

If size is diffecult to find the replace the size with
Effort spent i.e. # of Defects/Effort Spent.

Answer / 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.

Answer / sri

Defect Density = No.of issues Raised/No.of Issued Fixed

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