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[연구]Lot sizing and quality investment with quality cost analyses for imperfect production and inspection
2012.12.01 Views 579 경영학연구분석센터
International Journal of Production Economics
Volume 140, Issue 2, December 2012, Pages 922–933
Seung Ho Yoo (a), DaeSoo Kim (b), Myung-Sub Park (b)
a Sun Moon University, Tangjeong-myeon, Asan, Chungnam 336-708, Republic of Korea
b Korea University, Business School, Anam-dong, Seongbuk-gu, Seoul 136-701, Republic of Korea
http://www.sciencedirect.com/science/article/pii/S0925527312003210
Abstract
This study examines an imperfect production and inspection system with customer return and defective disposal. We develop an optimal lot sizing model with production and inspection quality investment, incorporating all the quality costs. We find the optimal lot size, rework frequency, defective proportion, and Type I and Type II inspection error proportions which minimize the total quality cost and maximize the total profit. We further analyze the solutions for no, partial, sequential and joint investment decisions on production and/or inspection processes in terms of quality costs using numerical analyses. The result provides important managerial insights into practice.
Keywords
Inventory; Imperfect production; Inspection; Return; Quality cost
Volume 140, Issue 2, December 2012, Pages 922–933
Seung Ho Yoo (a), DaeSoo Kim (b), Myung-Sub Park (b)
a Sun Moon University, Tangjeong-myeon, Asan, Chungnam 336-708, Republic of Korea
b Korea University, Business School, Anam-dong, Seongbuk-gu, Seoul 136-701, Republic of Korea
http://www.sciencedirect.com/science/article/pii/S0925527312003210
Abstract
This study examines an imperfect production and inspection system with customer return and defective disposal. We develop an optimal lot sizing model with production and inspection quality investment, incorporating all the quality costs. We find the optimal lot size, rework frequency, defective proportion, and Type I and Type II inspection error proportions which minimize the total quality cost and maximize the total profit. We further analyze the solutions for no, partial, sequential and joint investment decisions on production and/or inspection processes in terms of quality costs using numerical analyses. The result provides important managerial insights into practice.
Keywords
Inventory; Imperfect production; Inspection; Return; Quality cost