Covering Arrays of Strength Three

  • Authors:
  • M. A. Chateauneuf;Charles J. Colbourn;D. L. Kreher

  • Affiliations:
  • Department of Mathematical Sciences, Michigan Technological University, Houghton, Michigan 49931-1295.;Department of Computer Science, University of Vermont, Burlington, Vermont 05405.;Department of Mathematical Sciences, Michigan Technological University, Houghton, Michigan 49931-1295.

  • Venue:
  • Designs, Codes and Cryptography
  • Year:
  • 1999

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Abstract

A coveringarray of size N, degree k, orderv and strength t is a k \timesN array with entries from a set of v symbolssuch that in any t \times N subarray every t\times 1 column occurs at least once. Covering arrayshave been studied for their applications to drug screening andsoftware testing. We present explicit constructions and giveconstructive upper bounds for the size of a covering array ofstrength three.