what is Regresstion testing? when it will be needed?
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Answer Posted / nagk
we do Regression testing
1)when bug is found in one module after it fixed,we check
the fixed bug and other modules if it other are depend on
this fixed module
ex:-there a,b,c,d are four modules a is independent from
others and b and c are depend on each other,d also independent.
if we found bug in a we don't need to do regression but if
it is in c we check bug is fixed in c also because of
changing c if it has any effect on b this is called
regression testing
2)when new version software is released for existing one
with few extra features.Because of newly added features
previous functionlities may get effect.to check new features
and previous one.here new feature have to be test manually
and detailed but previous ones are done by automated tools
these is the main reason for existing of automated tools
am i right?
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