What Is Pairwise Testing?

What Is Pairwise Testing?
February 25 11:32 2016 Print This Article

Very often, the specialists from software testing company face the problem of checking the system which has several various input parameters. If a tester wants to check all possible input conditions, then it will be very time-consuming process.

Beside that, it is obvious that to test all combinations is impossible, for example, when the system has twenty or more input parameters. The tester should be either very patient or very smart. Unexperienced specialist may start checking all value combinations. But a clever and curious one knows that pairwise testing will solve the problem in such a situation.

What Are the Advantages of Pairwise Testing?

  • It reduces the number of test cases needed for system checking.
  • It accelerates the testing process itself.
  • It takes 50 percent less efforts.
  • The number of bugs detected by pairwise testing is bigger than found by checking all values for each parameter.

There is no exact answer why this software testing type works so well. But it is proven-in-use that the appliance of pairwise checking makes mobile testing, desktop testing and web application testing more efficient and effective.

There are two techniques which help to define the pair for designing test cases – orthogonal arrays and the Allpairs algorithm.

Thus, to perform effective functional testing, it is not necessarily to test each value for each input parameters. To check the pairs of variables is just enough.

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Nataliia Vasylyna
Nataliia Vasylyna

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