臺灣博碩士論文加值系統

根據統計資料顯示，台灣冰品產業每年約有45億新台幣的產值，在這一塊大餅的誘惑下，每年的冰品店家逐年增加，大家也都推陳出新，差異化冰品也持續增加，這也造成了冰品市場的競爭力越來越激烈，在嚴苛的環境下，個案公司F公司卻常因採購決策憑著經營者依據經驗訂貨的方式，導致不必要的浪費，造成利潤減損，顯示其採購決策的重要性。
為減少F公司因為採購決策錯誤而帶來的損失，本研究透過物料需求規劃模型重新制訂了一個採購策略，為了使數理模型可以更合理的解決實務情況，本研究將F公司遇到的實務情況如運費成本或與供應商達成的協議透過限制式加入到模型之中，以最小成本化為目標，求得每一期的最適訂貨量。
最終透過F公司所提供的數據進行實證研究，當F公司採納新的採購策略時，除了有最佳訂貨量可以參考外，也可以降低採購成本與運費成本的支出，並藉由敏感度分析，可以瞭解到外部環境因子對於決策模式的確切影響，最後提出結論與未來建議提供後續研究以及實務應用的參考。

According to the statistical report, Taiwan's shaved ice industry has an annual output value of NT$4.5 billion every year. In this market with great potential, the number of ice shops has increased year by year. All the shops are developing new products, and the number of distinguished shaved ice products are increasing. This has made the shaved ice market more competitive than before. In the difficult moment, the F company used to order according the manager's personal experience. And it sometimes causes unnecessary waste. For this reason, building up an adequate purchasing decision scheme is necessary.
In order to reduce the losses caused by the F company's suboptimal purchasing decisions, our study helps to construct a procurement model based on a simplified the material requirements planning process. In order to make the model fit the practice, we consider the freight cost discount and warehouse capacity limit. Solving the problem integer programming helps the company to minimize the operation cost.
After inputing the empirical data, F Company achieves the optimal procurement strategy, which helps to reduce the cost of purchasing and shipping costs. And through the sensitivity analysis, we demonstrate the impact of external environmental factors on the decision model.

中文摘要 i
Abstract ii
目錄 iii
表目錄 v
圖目錄 vi
第一章 緒論 1
1.1研究背景 1
1.2研究動機 5
1.3研究目的 5
1.4研究流程 6
第二章 文獻回顧 7
2.1最佳訂貨點 7
2.2最適訂貨量 9
2.3採購策略 10
2.4倉儲空間限制 11
第三章 模型建構 14
3.1前言 14
3.2符號定義 14
3.3模型基本假設 15
3.4各項成本說明 17
3.5模型建構 18
第四章 最適決策分析 21
4.1重要參數定義與數值依據 21
4.2需求預測模型演算 24
4.3最佳訂購量規劃求解演算 28
4.4將最佳訂購量總成本與原先總成本的比較 29
第五章 敏感度分析 31
5.1參數持有成本對總成本和各品項冰磚最佳訂購的影響 32
5.2參數單位採購成本對總成本和各品項冰磚最佳訂購的影響 34
5.3參數運費成本對總成本和各品項冰磚最佳訂購的影響 37
5.4參數年需求量對總成本和各品項冰磚最佳訂購的影響 40
5.5各參數對總成本的影響分析 48
5.6各參數對冰磚最佳訂購數的影響分析 49
第六章 結論 52
6.1研究結論 52
6.2研究限制與未來建議 53
參考文獻 55
中文文獻 55
英文文獻 56

中文文獻
公開資料
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書籍引用
(1)Heisig, G. (2012). Planning stability in material requirements planning systems (Vol. 515). Springer Science & Business Media.
(2)Monczka, R. M., Handfield, R. B., Giunipero, L. C., & Patterson, J. L. (2015). Purchasing and supply chain management. Cengage Learning.
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