Journal of Korean Society of Industrial and Systems Engineering (산업경영시스템학회지)
- Volume 13 Issue 21
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- Pages.101-110
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- 1990
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- 2005-0461(pISSN)
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- 2287-7975(eISSN)
Two Level-Parallel Type Inventory Systems for Aggregate Backorders
총괄 사후주문을 고려한 2수준 병렬형 재고분배시스템
Abstract
This study presents a two-level inventory distribution system with one-upper level facility(warehouse) in first echelon and n-lower level facilities(stores) in the second echelon. The demand process at the upper level is induced by the aggregated backorder processes of n independently operated lower level facilities in parallel. For the upper level and the lower level we find the decision points and the distribution function of the aggregate backorders from n-stores. Optimal allocation units and expected system profits are obtained. If the product is of great enough importance to the customer, echelon structure will include a shadow installation. Also, this case is analyzed. Numerical examples are presented to illustrate the results for each case.
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