Answer / prabha

1)miscommunication or no communication - as to specifics of
what an application should or shouldn't do (the
application's requirements).

2)software complexity - the complexity of current software
applications can be difficult to comprehend for anyone
without experience in modern-day software development.
programming errors - programmers, like anyone else, can make
mistakes.

3)changing requirements - the customer may not understand
the effects of changes, or may understand and request them
anyway

3)time pressures - scheduling of software projects is
difficult at best, often requiring a lot of guesswork. When
deadlines loom and the crunch comes, mistakes will be made.

4)poorly documented code - it's tough to maintain and modify
code that is badly written or poorly documented; the result
is bugs.

5)software development tools - visual tools, class
libraries, compilers, scripting tools, etc. often introduce
their own bugs or are poorly documented, resulting in added
bugs.

prabha.bhatted@hotmail.com

Answer / chandru

If the developer follows all the required procedures for
designing and coding which is based on SRS and follows all
the required procedures like using decision tables,etc.
then the software will not have bugs at all. This is an
ideal situation. But practically this is not possible. The
coder commits a small mistake somewhere in coding or
referring the table,etc. Though it is small one, it will
have huge impact if released without proper verification
and rectification, like Spacecraft/ satellite failures
soon after launching or in the mid way. This comes from a
famous saying "To err is human".

Answer / girish

Software has bugs because
Bugs get introduced right from the requirement analysis
phase
--The customer requirements are not properly understood
--The design phase gets affected by the above
--The coding based on the above faulty design introduces
bug in the software

Answer / rajesh.veggalam

i think due to reason software has bugs
miscommunication or no communication
software complexity-diff comp environments
programming errors-changing requirements
time pressure- due to lack of time,dead lines
poorly document code

Answer / vicky

In interview first you should clear that not a single
software is bug-free
if there is bug in software there can be various reason
behind that
such as
--improper requirements
--unrealistic requirements
--lack of objectivity of developer
--Time pressure
--Lack of resources
--lack of communication between team members
etc...
but with early testing we can prevent the fault
multiplication...

if i am wrong then let me know

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