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The Effect Analysis of the Improved Vari-METRIC in Multi-Echelon Inventory Model  

Yoon, Hyouk (국방대학교 국방관리학과)
Lee, Sang-Jin (국방대학교 국방관리학과)
Publication Information
Korean Management Science Review / v.28, no.1, 2011 , pp. 117-127 More about this Journal
Abstract
In the Multi-Echelon maintenance environment, METRIC(Multi-Echelon Technique for Repairable Item Control) has been used in several different inventory level selection models, such as MOD-METRIC, Vari-METRIC, and Dyna- ETRIC. While this model's logic is easy to be implemented, a critical assumption of infinite maintenance capacity would deteriorate actual values, especially Expected Back Order(EBO)s for each item. To improve the accuracy of EBO, we develop two models using simulation and queueing theory that calculates EBO considering finite capacity. The result of our numerical example shows that the expected backorder from our model is much closer to the true value than the one from Vari-METRIC. The queueing model is preferable to the simulation model regarding the computational time.
Keywords
Inventory Level; Simulation; Queueing Theory;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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