Explain All-pairs testing?



Explain All-pairs testing?..

Answer / ramyab.mca@gmail.com

Hai....

All-pairs testing:

All-pairs testing or pair wise testing is a combinatorial
software testing method that, for each pair of input
parameters to a system (typically, a software algorithm),
tests all possible discrete combinations of those
parameters. Using carefully chosen test vectors, this can
be done much faster than an exhaustive search of all
combinations of all parameters, by "parallelizing" the
tests of parameter pairs. The number of tests is typically
O (nm), where n and m are the number of possibilities for
each of the two parameters with the most choices.

the simplest bugs in a program are generally triggered by a
single input parameter. The next simplest category of bugs
consists of those dependent on interactions between pairs
of parameters, which can be caught with all-pairs testing.
[1] Bugs involving interactions between three or more
parameters are progressively less common[2], whilst at the
same time being progressively more expensive to find by
exhaustive testing, which has as its limit the exhaustive
testing of all possible inputs.

K,Byeeee...
Thanks & Regards
B.Ramyasri

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