불완전 품질검사와 회수물류를 고려한 동적 재고모형 = Dynamic Inventory Model with Imperfect Inspection and Reverse Logistics

다국어 초록 (Multilingual Abstract)

In practice, inspection processes are not often perfect, thereby delivering defects to customers generates reverse logistics process. Most previous imperfect-quality inventory studies, however, assumed that defective items could be completely detected by inspection and fixed before delivery to customers.
To reduce the gap between practice and academia, we relax the assumption of perfect inspection, and suggest an dynamic inventory model considering reverse logistics caused by imperfect inspection.
System dynamics model is used to describe the complex and dynamic problem related to imperfect inspection and reverse logistics and to show the effect of them on profit by simulation. Finally, this article provides a guideline for the inspection policy achieving the maximum profit.

국문 초록 (Abstract)

기업 현실에서 불완전한 품질검사 프로세스는 종종 고객에게 불량품을 전달하고 회수물류를 유발한다. 하지만 불완전한 품질 상황에서의 재고모형을 다룬 대부분의 연구들은 품질검사가 완전하여 모든 불량품이 고객에게 전달되기 전에 발견되고, 처리되는 비현실적인 상황을 가정한다. 본 연구에서는 불완전한 품질검사와 이로 인해 발생하는 회수물류를 고려한 재고모형을 제시하고, 시스템 다이나믹스 모형을 통해 불완전한 품질검사와 회수물류에 의해 발생하는 복잡하고 동적인 상황을 묘사하기 위한 연구이다. 시뮬레이션을 통해 품질검사의 불완전성과 회수물류가 기업의 수익 및 비용에 미치는 영향을 고찰하고, 기업이익을 극대화할 수 있는 품질검사 정책에 대한 지침을 제시하였다.

참고문헌 (Reference)

• 1 최재섭, "인터넷쇼핑몰 소비자의 만족도에 관한 연구" 한국유통정보학회 9 (9): 2006
• 2 김창호, "인터넷 쇼핑몰의 성공요인에 대한 분석" 한국유통정보학회 4 (4): 2001
• 3 지성구, "소규모 점포의 고객 불만족 결정 요인" 한국유통정보학회 10 (10): 2007
• 4 김현경, "고객 만족과 결속이 재구매 의도에 미치는 영향" 한국유통정보학회 10 (10): 2007
• 5 Guu, S, "The Finite Multiple Lot Sizing Problem with Interrupted Geometric Yield and Holding Costs" 145 : 2003
• 6 Richter, K, "The Extended EOQ Repair and Waste Disposal Model" 45 (45): 1996
• 7 Liou, M., "The Effects of Inspection Errors to the Imperfect EMQ Model" 26 (26): 1994
• 8 Richter, K, "The EOQ Repair and Waste Disposal Model with Variable Setup Numbers" (2) : 1996
• 9 최창열, "TV 홈쇼핑 이용자의 구매특성에 대한 실증분석" 한국유통정보학회 7 (7): 2004
• 10 Chopra, S, "Supply Chain Management: Strategy, Planning, and Operation" Prentice Hall 2004
• 11 Anily,S., "Single-machine Lot-sizing with Uniform Yields and Rigid Demands: Robustness of the Optimal Solution" 27 (27): 625-633, 1995
• 12 Lee, H. L, "Simultaneous Determination of Production Cycle and Inspection Schedules in a Production System" 33 (33): 1987
• 13 Taguchi, G, "Robust Quality" Harvard Business Review 1990
• 14 "RLEC"
• 15 Juran, J. M, "Quality Planning and Analysis" McGraw-Hill 1980
• 16 Ouyang, L., "Quality Improvement, Setup Cost and Lead-time Reductions in Lot Size Reorder Point Models with an Imperfect Production Process" 29 (29): 2002
• 17 Kim, C. H., "Optimal Production Run Length and Inspection Schedules in a Deteriorating Production Process" 33 (33): 2001
• 18 Porteus, E. L., "Optimal Lot Sizing, Process Quality Improvement and Setup Cost Reduction" 34 (34): 1986
• 19 Yeh, R. H, "Optimal Lot Size and Inspection Policy for Products Sold with Warranty" 174 (174): 2005
• 20 Vickson, R. G, "Optimal Inspection Sublots for Deteriorating Batch Production" 30 (30): 1998
• 21 Lee, W. J, "Optimal Demand Rate, Lot Sizing and Process Reliability Improvement Decisions" 28 (28): 1996
• 22 Krajewski, L. J., "Operations Management : Strategy and Analysis" Prentice Hall 2002
• 23 Zhang, X, "Joint Lot Sizing and Inspection Policy in an EOQ Model with Random Yield" 22 (22): 1990
• 24 Rahim, M. A, "Joint Determination of Production Quantity, Inspection Schedule, and Quality Control for an Imperfect Process with Deteriorating Products" 52 (52): 2001
• 25 Rahim, M. A., "Joint Determination of Production Quantity, Inspection Schedule and Control Chart Design" 26 (26): 1994
• 26 Lee, J. S, "Joint Determination of Production Cycle and Inspection Intervals in a Deteriorating Production" 42 (42): 1991
• 27 Salameh, M. K, "Economic Production Quantity Model for Items with Imperfect Quality" 64 : 2000
• 28 Rosenblatt, M .J, "Economic Production Cycles with Imperfect Production Processes" 18 (18): 1986
• 29 Tuenter, R. H, "Economic Ordering Quantities for Recoverable Item Inventory Systems" 48 (48): 2001
• 30 Chen,C., "Economic Manufacturing Quantity, Optimum Process Mean, and Economic Specification Limits Setting under the Rectifying Inspection Plan" 183 (183): 2007
• 31 Cheng, T. C. E., "EPQ with Process Capability and Quality Assurance Considerations" No.8 42 (42): 1991
• 32 Schwaller, R. L, "EOQ under Inspection Costs" 29 (29): 1988
• 33 Cyber Atlas and BizRate Study, "Cyber Atlas and BizRate Study"
• 34 Sterman, J. D, "Business Dynamics : System Thinking and Modeling for a Complex World" McGraw-Hill 2004
• 35 RLEC, "Apparel Manufacturers Survey"
• 36 Koh, S., "An Optimal Ordering and Recovery Policy for Reusable Items" 43 (43): 59-73, 2002
• 37 Dobos, I., "An Extended Production/recycling Model with Stationary Demand and Return Rates" 90 (90): 2004
• 38 Cheng, C. E., "An Economic Production Quantity Model with Flexibility and Reliability Considerations" 39 : 1989
• 39 Cheng, T. C. E, "An Economic Order Quantity Model with Demand-dependent Unit Production Cost and Imperfect Production Process" 23 (23): 1991
• 40 Tripathy, P. K., "An EOQ Model with Process Reliability Considerations" 54 (54): 2003
• 41 Dobos, I., "A production/recycling Model with Quality Consideration" 104 (104): 2006
• 42 Lee, H. L, "A Production and Maintenance Planning Model with Restoration Cost Dependent on Detection Delay" 21 (21): 1989
• 43 Leung, K. F, "A Generalized Geometric-programming Solution to An Economic Quantity Model with Flexibility and Reliability Considerations" 176 (176): 2007
• 44 Schrady, D. A., "A Deterministic Inventory Model for Repairable Items" 14 : 1967