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if u have 10 inputs & you written 500 testcases for
that.out of this u found 20 defects.as a tester how u found
from which requirement that a particular defect will occur.
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Answer Posted / rajasundar
Good Question.
Ofcourse through Tracebility Matrix.
In detail..
If you are writing 500 testcases for 10 inputs then all the
test cases can not be direct cases; means, dependent test
cases should be there(test case depends on another
testcase).
So if a test case is failing then obviously the dependent
test cases will also fail. But usually we use to say that
the dependent cases are blocked(instead of fail) because of
the failed test case.
Take an edit box in the screen.
The requirement could be:
User is allowed to enter the values in the username and it
should accept 10 chars only.
Now, consider the following test cases for this requirement.
1. User able to enter data in username field.
2. Check for max. length of username field.
Assume the first case fails.i.e, the edit field doesn't
allow the user to enter the values;what happens to the
second case ? The tester cannot execute the second case as
he cannot enter the data into edit field.In this scenario
the second case is said to be blocked by case 1 and both
belong to the same requirement.
Usually in the tracebility matrix, we use to map the test
cases developed for the particular requirement.Say, if you
are developing 10 cases for a requirement and 1 case is
failing and remaining 9 cases are passed, then the
tracebility matrix does not say the requirement is passed.
Only if all the 10 cases of the requirement are passed then
only the tracebility matrix shows the requirement is Passed.
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