在台灣加入世界貿易組織後,企業及政府都將面臨更嚴峻的考驗。機械產業在面臨轉型的過程中,由過去客製化或接單式生產的生產策略,轉變為計畫式生產或接單後組裝的生產方式,並須透過整體供應鏈中各階層內的廠商相互合作,形成了綿密的分工網路。在供應鏈錯綜複雜之網狀組織,造成企業在管理多階多廠的供應鏈時,必須考量供應鏈間各供應商的交期、產能、品質與存貨等問題,使得企業在供應鏈管理上變得相當困難,而不同的生產環境策略會對整個供應鏈產生不同效益,因此如何有效降供應鏈活動成本與提升整體效益是目前供應鏈必須面對的一個重要課題。 本研究旨在探討機械產業製造商與其上游供應商所形成的多產品多階供應鏈,在機械產業轉型為計畫式生產或接單後組裝,且企業保持關鍵模組自製的情況下,發展一個多產品生產環境之整數規劃模式。以生產成本、缺貨成本、存貨成本與延遲成本為目標函數,期望以總成本最小化為前提下,規劃出多產品之BOM表內各關鍵模組的生產數量以及非關鍵模組的訂購數量,且計畫式生產能維持一定的存貨水準,協助企業解決目前面臨之問題。
After Taiwan joined the WTO, the government and companies have faced the hardest stern than never. The Mechanical Industry must take into account the process of reforming, due to the transformation of production environment from ETO/MTO to MTS/CTO. Companies apply different production principles to interact with one another and result in a complex network. It increases the complexity to manage a multi-level and multi-factory supply chain, especially, when supplier capacity, due date, and inventory issues are considered. As a result, different production strategy makes different effect. Therefore, how to reduce the activity cost of supply chain and improve the entire chain effectiveness becomes an important research topic. A multi-product type and multi-level supply chain formed by machinery manufacturer and its upstream suppliers is studied in this research. We develop an integer programming model under CTO/MTS production environment with the objective function to minimize the overall costs for production, stock out, inventory and delivery delayed. The goal is to determine the production quantity, the MTS’s stock quantity and purchase quantity of item based on BOM of multiple products. We wish the research does help enterprises to solve the problem faced at present.