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系統識別號 U0026-1107201909552100
論文名稱(中文) 應用限制理論於個案醫療器材公司之生產及存貨管理
論文名稱(英文) Applying Theory of Constraints to a Medical Device Firm’s Production and Inventory Management
校院名稱 成功大學
系所名稱(中) 工業與資訊管理學系碩士在職專班
系所名稱(英) Department of Industrial and Information Management (on the job class)
學年度 107
學期 2
出版年 108
研究生(中文) 金煒迪
研究生(英文) Wei-Ti Chin
學號 R37061236
學位類別 碩士
語文別 中文
論文頁數 67頁
口試委員 指導教授-謝中奇
口試委員-陳梁軒
口試委員-王泰裕
中文關鍵字 限制理論  生產管理  存貨管理 
英文關鍵字 Theory of Constraints  Production Management  Inventory Management 
學科別分類
中文摘要 在現今醫療器材市場中,先進者最大之利益為可以占有並拉開市場差距,獨占利潤,也握有學習曲線和規模經驗之優勢,且將品牌忠誠度和顧客轉換為資本等優勢;而對於後進者公司之發展中,則需發揮後進者之優勢來掠奪既有市場,但除了應用其優勢外,更需同時改善後進者之劣勢情形。
台灣自有品牌醫療器材於市場拓銷前期,面對既有市場之掠奪困難重重,除了對外之業務模式,自身於工廠端之生產規劃與存貨管理也是極其重要之ㄧ環,個案新創醫材公司在初踏入市場階段成長幅度大,且特殊狀況多,需即時滿足客戶等種種問題,需建立一套能同時保持低庫存,但不斷貨之生產與存貨管理系統。
本研究規劃將特殊案例剔除出來做另外規劃處理,以降低推式生產之標準差,降低人力資源與原物料與庫存成本上升等問題,而衡量之標準則以前兩年之銷售量做一量化分析,再導入庫存緩衝區間管理,並整合成品A與成品B做一連續性產線,完成定時定量之推式生產,以供穩定解決既有客戶需求,也降低庫存與生產成本。
個案新創醫材公司藉由展覽或其他銷售方法來提升公司知名度與銷售量已是一勢在必行之作為,但尚未有實際數據能提供回測,故後續以文字闡述之方式提供如,獨立為展覽提前生產之單一製程,將即期品於展會特價出售之清倉方法,保有現場特價並平攤出貨於醫師降低雙方庫存壓力,等解決特例方法以提供參考。
個案公司目前僅有生產規劃,但尚無生產管制,故本研究應用生產管制並結合限制理論將個案新創醫材公司遭遇之生產與存貨管理問題,拆分成定時定量並含有庫存緩衝管理之推式生產,與將個案情形以文字敘述之拉式生產,經回測後該個案新創醫材公司最多下降了約98.9%之庫存量,且能保有低IDD值與TDD值為零之績效,為該個案新創醫材公司大幅度降低生產量與庫存量,確實改善了個案新創醫材公司之生產與存貨管理。
英文摘要 This thesis aims to reduce the standard deviation of push production, solve the problems related to human resources, raw materials, and inventory, based on a quantitative analysis of the sales volume in the previous two years. The inventory buffer is then introduced, and products A and B are integrated into a continuous production line, and refined push production is developed, in order to meet customer demand and reduce the inventory and production cost.
The case study company is a newly founded medical device firm. Increasing the brand awareness and sales through exhibitions or other means are imperative for the firm. Because there are few data on exhibitions, this study considers production for exhibitions and clearance sales in exhibitions with special offers as an independent process and does not include it in the analysis.
The case study firm engages in production planning but has not paid attention to production control. Thus, this thesis applies production management and the theory of constraints to deal with the firm’s production and inventory management issues. First, products A and B are integrated to create a continuous production line for push production of fixed quantities at fixed times under buffer management. Secondly, the case situation is discussed and a plan for pull production is provided in the thesis. According to the back-testing results, the largest inventory reduction for the case study firm is 98.9%, while IDD and TDD remain 0, suggesting that the case study firm can significantly reduce its outputs and inventories and improve its production and inventory management.
論文目次 目錄
摘要 I
Extended Abstract II
誌謝 V
目錄 VI
表目錄 IX
圖目錄 X
第1章 緒論 1
1.1 研究背景與動機 1
1.2 研究目的 2
1.3 研究流程 3
1.4 論文架構 4
第2章 文獻探討 5
2.1 限制理論 (Theory of Constraints, TOC) 5
2.1.1 限制理論概要 5
2.1.2 限制理論的步驟 6
2.1.3 限制理論之應用層面 8
2.1.4 以限制理論排除供應鏈問題瓶頸 10
2.2 醫療器材市場與發展 13
2.2.1 全球醫療市場概況 13
2.2.2 台灣醫療產業現況 14
2.2.3 骨取代物市場分析 15
2.2.4 骨取代物簡介 17
2.3 供應鏈經營法則 18
2.3.1 傳統供應鏈 18
2.3.2 造成供應鏈震盪之長鞭效應(Bullwhip Effect) 19
2.4 生產管理方法 21
2.4.1 推式生產介紹 21
2.4.2 拉式生產介紹 22
2.4.3 推/拉式供應鏈比較 23
2.5 庫存管理方法 25
2.5.1 連續與定期補貨方法 26
2.5.2 庫存管理總結 29
第3章 研究方法 32
3.1 研究情境 32
3.2 研究假設 33
3.3 研究架構 34
3.4 TOC Demand-Pull之緩衝管理 35
3.5 績效衡量管理評估 36
3.5.1 有效產出天-元(Throughput-Dollar-Days, TDD) 36
3.5.2 存貨天-元(Inventory-Dollar-Days, IDD) 36
3.5.3 生產量庫存量報廢量績效 37
第4章 數據分析與討論 38
4.1 個案公司產線評估分析 38
4.1.1 J公司產品原製程規劃 38
4.1.2 成品A與成品B之庫存分析 38
4.1.3 主要原料-原物料A之庫存分析 39
4.2 個案公司成品生產製程與庫存改善 44
4.2.1 成品A與B之定時生產排程改善 44
4.2.2 成品A與B之生產量評估 45
4.2.3 改良生產方式之積效評估與回測 49
4.2.4 建立庫存緩衝倉降低缺貨率 51
4.2.5 回測導入緩衝管理庫存區後之分析 53
4.2.6 原始生產排程與緩衝庫存管理方法比較 56
4.2.7 經製程改善後節省之數量與比例 58
4.3 個案公司因應特例生產管理與提高營運收益之建議 60
4.3.1 個案公司展覽行銷推廣 60
4.3.2 以提前規劃生產補足展覽之銷售量 60
4.3.3 以即期品進行產品優惠促銷 61
4.3.4 非緊急需要提供平攤供給醫生方案配合 62
第5章 結論與未來研究方向 64
5.1 結論 64
5.2 未來研究方向 64
參考文獻 65
參考文獻 中文文獻
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英文文獻
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