Orthogonal array testing

Orthogonal array testing is a systematic and statistically-driven black-box testing technique employed in the field of software testing. This method is particularly valuable in scenarios where the number of inputs to a system is substantial enough to make exhaustive testing impractical.

Rao, Calyampudi Radhakrishna (2009). "Orthogonal arrays". Scholarpedia. 4 (7): 9076. Bibcode:2009SchpJ...4.9076R. doi:10.4249/scholarpedia.9076.

Phadke, Madhav S. "Planning Efficient Software Tests". Phadke Associates, Inc. Archived from the original on 2012-04-25. Retrieved 2011-10-07. Numerous articles on utilizing Orthogonal Arrays for Software and System Testing.