Software testing is used to evaluate the correctness, completeness
and quality of developed computer software. There are two main approaches of
software testing. One is white-box testing and the other is black box
testing. White-box testing method is used for logical and analytic test in unit
test level. Meanwhile black-box testing is used in integration level or
system level because black-box test does not need to look into source code but
just need to execute a system by using input data and output result.
Even if
we select a testing method among black-box testing methods, the test result
will be different because the technique specifying requirements and the method
extracting test data are different in spite of the same black-box style. If we
don’t apply a proper test method for black-box testing, we can’t trust the test
result and it produces enormous loss due to a waste of time, manpower and
money. Accordingly we need the various comparative studies of test techniques
to apply properly in the testing field.
Even if we select a testing method among black-box testing methods, the test result will be different because the technique specifying requirements and the method extracting test data are different in spite of the same black-box style. If we don’t apply a proper test method for black-box testing, we can’t trust the test result and it produces enormous loss due to a waste of time, manpower and money. Accordingly we need the various comparative studies of test techniques to apply properly in the testing field.
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