ATA: ISTQB Advanced Level Test Analyst

By ISTQB · Question Mode

QuestionQ21

Test Analysis and Test Design

You are applying pairwise testing using orthogonal arrays. The following steps are all part of the process to be followed:

  1. i) Determine the number of choices for each variable
  2. ii) Map the test problem onto the orthogonal array
  3. iii) Construct the test cases
  4. iv) Identify the variables
  5. v) Locate a suitable orthogonal array

What is the correct order of the process steps mentioned above?

Explanation

Orthogonal-array pairwise test design begins by identifying the variables and their possible choices. Those counts determine which orthogonal array is suitable. The variables and choices are then mapped onto the chosen array, whose rows are used to construct the test cases.

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