Answer / amber

There is no difference between Bugs/Errors/Defects. They
are one at the same things. Different companies are using
different terms for defining errors. If I take an example
of HPQC, every issue is being locked in the tool
as 'Defect' (even if its been found during requirement
walkthroughs / Unit Testing or Function testing)

All signifies one statement:
"Differernce between actual and expected output"

Answer / ashwin kumar v n

DEFECT is introduced into the software as a result of an
ERROR at the input that may cause the system to behave
incorrectly and not according to the specification.

Error: It is a mistake,misconception or misunderstanding on
the part of a software engineer. When mistakes or errors
occur at the input side then they enter into the system as
faults/defects which further lead to the FAILURE of the system.

Answer / vijaya

Bug is software error which is not properly working in the
application.
Defect is any one of these..
either insufficient in the SRS,
insufficient in DD's(Design Documents)
it may be any defect right from beginning of the
development life cycle.
Error means it is mistake done by the programmers.

Answer / neellohit

Bug - Is Differernce between actual and expected output,

Defect -Defects occur usually when a product no longer
works the way it used to.It is usually found after the
release of software


Error - programmatically mistake leads to error.
When we get the wrong output i.e. syntax error, logical
error

Answer / deepti palagiri

error: is discrepancy in the s/w is error

bug: is deviation from the expected

defect: its similar to bug. Bug found in clients
environment after the release of the application

Answer / suneel reddy

Error : It is a human mistake

Bug: It is incorrect part of code caused by an error

Defect: The difference between actual value and expected
value

Answer / karan

Error: Mistake or Misconception on the part of a Test
Engineer.

Bug: Don't know the Answer...

Defect: I am Appreciated.

Answer / rich

There is no difference in these terminologies unless
specified by the management of your particular company.
There have been many different assignments of meanings to
each of these terminologies and you may find that where you
work, there is a difference, but globally there is none.

Answer / sunil reddy

Error : the amount by which the result is incorrect

Bug : incorrect part of code caused by an error

Defect : The diffrence between expected and actual result

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