| Author | Chakrit Keeratipish |
| Call Number | AIT Thesis no. ISE-00-15 |
| Subject(s) | Inventory control--Simulation methods
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| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Advanced Technologies |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. ISE-00-15 |
| Abstract | An inventory system is one of the most important components in supply chain. There are several policies to manage inventory in supply chain. Efficient coordination will lead to reduction in the inventory costs of a supply chain. This study is concerned with a practical procedure for determining all control parameters of independent control (must order level and order up to level) and coordinated replenishment control (must order level, can order level, and order up to level). Most of parameters in the models are considered as stochastic variables because the real inventory systems have various uncertain parameters. Simulation technique can be effectively used as an important tool for this study. In this study, a product distribution center is selected for the case study. First, demand data of product are collected and analyzed to find out the best fit of distribution. Second, preliminary models related to the system are constructed by using simulation program SIGMA. Third, to eliminate the drawback of graphic model in terms of the flexibility, limitation of variables, long run time and so on, final models coded by C program are built in accordance with the graphic model. Fourth, design of experiments is conducted. Finally, simulation runs and optimization technique (response surface methodology) is applied. Through this study, a lot of information of inventory system, for instance cost of inventory (ordering cost, holding cost and shortage cost), number of total replenishments, number of replenishments triggered by other items in the group (coordinated control only), average inventory level, and the expected number of backordered customers are analyzed. Subsequently, average annual inventmy cost comparison between independent control and coordinated replenishment control indicates that there are substantial savings from coordinated control. |
| Year | 2000 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. ISE-00-15 |
| Type | Thesis |
| School | School of Advanced Technologies (SAT) |
| Department | Department of Industrial Systems Engineering (DISE) |
| Academic Program/FoS | Industrial Systems Engineering (ISE) |
| Chairperson(s) | Nagarnr, Nagendra N.; |
| Examination Committee(s) | Anulark Pinnoi;Bohez, Erik L.J.; |
| Scholarship Donor(s) | The Siam Cement Public Company Limited; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2000 |