Graphical methods for evaluating covering arrays

Journal Article · Mon Aug 10 00:00:00 EDT 2015 · Quality and Reliability Engineering International

DOI:https://doi.org/10.1002/qre.1857· OSTI ID:1224439

Kim, Youngil ^[1]; Jang, Dae -Heung ^[2]; Anderson-Cook, Christine M. ^[3]

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1. ChungAng Univ., Seoul (Korea)
2. Pukyong National Univ., Busan (Korea)
3. Los Alamos National Lab., Los Alamos, NM (United States)

Covering arrays relax the condition of orthogonal arrays by only requiring that all combination of levels be covered but not requiring that the appearance of all combination of levels be balanced. This allows for a much larger number of factors to be simultaneously considered but at the cost of poorer estimation of the factor effects. To better understand patterns between sets of columns and evaluate the degree of coverage to compare and select between alternative arrays, we suggest several new graphical methods that show some of the patterns of coverage for different designs. As a result, these graphical methods for evaluating covering arrays are illustrated with a few examples.

• Research Organization: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE
• Grant/Contract Number: AC52-06NA25396
• OSTI ID: 1224439
• Report Number(s): LA-UR-15-26286
• Journal Information: Quality and Reliability Engineering International, Vol. 750, Issue C; ISSN 0748-8017
• Publisher: Wiley
• Country of Publication: United States
• Language: English

Related Subjects

97 MATHEMATICS AND COMPUTING
Mathematics