Posted on by Sharath Chandran

Orthogonal array testing technique

Orthogonal array testing technique (OATS)

It is a black box testing using statistical methods to arrive the minimum number of test cases can do the maximum coverage to test scenarios/ test data,

steps:

  1. Enter column name as number of factors (e.g. header, table, middle, bottom)
  2. Find out the least number of levels or values of test data
  3. Prepare a standard orthogonal array – make sure column 1 is test case ID
  4. Remaining 4 columns are factors
  5. Then add levels and optimize the combinations array.