Roux-type constructions for covering arrays of strengths three and four

  • Authors:
  • Charles J. Colbourn;Sosina S. Martirosyan;Tran Trung;Robert A. Walker, II

  • Affiliations:
  • Computer Science and Engineering, Arizona State University, Tempe, USA 85287;Mathematical Sciences, University of Houston-Clear Lake, Houston, USA 77058;Institut für Experimentelle Mathematik, Universität Duisburg-Essen, Essen, Germany 45326;Computer Science and Engineering, Arizona State University, Tempe, USA 85287

  • Venue:
  • Designs, Codes and Cryptography
  • Year:
  • 2006

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Abstract

A covering array CA(N;t,k,v) is an N 脳 k array such that every N 脳 t sub-array contains all t-tuples from v symbols at least once, where t is the strength of the array. Covering arrays are used to generate software test suites to cover all t-sets of component interactions. Recursive constructions for covering arrays of strengths 3 and 4 are developed, generalizing many "Roux-type" constructions. A numerical comparison with current construction techniques is given through existence tables for covering arrays.