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A Study of Demerit-CUSUM Control Chart and Interpretation Method  

나상민 (LG 실트론)
강창욱 (한양대학교 산업공학과)
심성보 (한양대학교 산업공학과)
Publication Information
Journal of Korean Society for Quality Management / v.31, no.1, 2003 , pp. 132-141 More about this Journal
Abstract
As the technology has improved and demands of customers have varied, a lot of products are getting diverse and intricate. Consequently, the enterprise that produce products have to simultaneously consider the various variables for the very products. There are some scheme, such as Multivariate control chart and Demerit control chart, designed to simultaneously monitor the variables in the process. In this paper, we present an effective method for process control using the Demerit-CUSUM control chart in the process where nonconforming units or nonconformities are occured by various types. In addition, we show interpretation method for abnormal signal in order to quickly detect the assignable causes as Demerit-CUSUM control chart signals abnormality. we compare performance of Demerit control chart and Demerit-CUSUM control chart using example again used in the existing studies, and present result of performance accoriding to changing sample size and parameter.
Keywords
SPC; Demerit Control Chart; Cusum Control Chart; Interpretation;
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  • Reference
1 Dodge, H. F. and M. N. Torrey(1977),'A Check Inspection and DemeritRating Plan', Journal of QuatityTechnology, Vol. 9, No. 3, pp. 146-156
2 Lu, X. S., M. Xie, T. N. Goh and C.D. Lai(1998), 'Control Chart for Multivariate Atthbute Processes ,'Internationcil Journal of Production Research, Vol. 36, No. 12, pp.3477-3489   DOI   ScienceOn
3 Montgomery, D. C.(1996), Introductionto Statistical QuaIity Control, 3rd ed.,John Wiley & Sons, NY
4 Nembhard, D. A. and H. B. Nembhard(2001), 'A Demerit Control Chart for Autocorrelated Data', Quatity Engineering, Vol. 13, No. 2, pp.179-190
5 Jones, L. A., W. H. Woodall and M. D.Conerly(1999), 'Exact Properties ofDemerit Control Charts', Journal ofQuaUty Technotogy, Vol. 31, No. 2,pp. 207-216
6 Whang, W, and Spedding T. A.(2000), 'Asynthetic Control Chart for Detecting SmallShifts in The Process Mean', joumaI of Quality Technology, Vo. 32, No. 1, pp.32-38   DOI
7 Woodall, W. H.(1997), 'Control ChartsBased on Attribute Data : Bibliography and Review', JournaI of QualityTechnotogy, Vol. 29, No. 2, pp.172-183
8 Lucas, J. M.(1985), 'Counted DataCUSUM's', Technometrics, Vol. 27,No. 2, pp. 129-144   DOI   ScienceOn
9 White, C. H., J. B. Keats and J.Stanley(1997), 'Poisson CUSUMversus c Chart for Defect Data',QuaIity Engineering, Vol. 9, No. 4,pp. 673-679