Efficient Scheduling Rules in a Combined Make-to-Stock and Make-to-Order Manufacturing System

Khaled Hadj Youssef (), Christian Van Delft () and Yves Dallery

Annals of Operations Research, 2004, vol. 126, issue 1, 103-134

Abstract: In this paper, we consider a mixed MTS/MTO policy to manage a single manufacturing facility producing two classes of end-products. A few end-products have high volume demands, whereas a fairly large number of end-products have low volume demands. In this situation, it is appealing to try to produce the high volume products according to an MTS policy and the low volume products according to an MTO policy. The purpose of this paper is to analyze and compare the impact of the choice of the scheduling policy on the overall performance of the system. We consider two policies: the classical FIFO policy and a priority policy (PR). The PR policy gives priority to production orders corresponding to low volume products over production orders corresponding to high volume products. Under some simple stochastic modeling assumptions, we develop analytical/numerical solutions to optimise each system. We then provide insights regarding this issue with the help of numerical examples. It appears that for some range of parameters, the PR rule can outperform the FIFO rule in the sense that, to achieve the same service level constraint, the corresponding cost under the PR rule is much lower. This situation is encountered when the low volume products can be managed with an MTO policy under the PR scheduling rule, while they have to be managed according to an MTS policy under the FIFO scheduling rule. We also derive some theoretical properties that support our empirical findings. Copyright Kluwer Academic Publishers 2004

Keywords: make-to-order (MTO); make-to-stock (MTS); first-in–first-out; priority; heterogeneous multi-product queueing system (search for similar items in EconPapers)
Date: 2004
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DOI: 10.1023/B:ANOR.0000012277.97069.a6

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