在製造業中，學習如何持續降低成本是現今企業賴以生存的要素之一。因此在市場競爭激烈的環境之下，採購與供應管理便成為業界的一門顯學。成本降低是採購單位日常工作中，非常重要的核心業務。但隨著企業立足在不同的市場環境與時間點，產品可能會遭逢到多樣化的競爭下，在價值鏈中身為後勤單位的採購組織，便需要利用策略與各種方法，來協助企業在成本控制上，達到相對低點，以做好開源節流中"節流"的角色。

本論文便以A公司為例，探討企業發展各階段的採購策略。論文研究的方式，是先介紹產業概況來認識A公司所立足的砷化鎵產業。接著以文獻回顧來了解採購的定義，與其在企業中所扮演的角色，並利用80/20法則來分別品項的重要性次序，爾後再以卡拉傑克矩陣來解析採購策略的種類。接下來，介紹企業發展的各階段與該行業所需採購的品項，然後以A公司為個案去探討，研究在不同階段如何去落實各項策略。

研究結果顯示，無論是創業初期、成長期、成熟期、甚或衰退期，採購策略的設定(硬道理)都與各採購品項的用量、單價、於市場/產業中的供需關係(買/賣方市場)有關。正所謂「風水輪流轉」的道理，因著市場競爭態勢多變的緣故下，現今多數企業的營運狀況難以維持常勝之姿。因此採購單位除了使用各種策略交互運用外，更重要的是必須維持良好正向的供應商關係、互動與合作(軟實力)。期盼在未來的路上，無論景氣與公司發展景況如何，均能一本初衷、處變不驚的以"策略"與"態度"來營運管理。

Learning how to reduce the cost is a key survival factor in the manufacturing industry.Therefor,prucurement and supply chain management become an significant knowledge in the strongly competitive comecial environment.As a procurement unit,Cost reduction is a very important core operation in the daily job content.But as a company standing in the different market and time point,product face diverse compitition possibly,procurement organization as a supporting unit in the supply chain needs to apply strategy and methods to assist cost controlling to the relative low level for its company,in order to be a great cost saving character in the activity of tapping new resources and reducing expenses.

The paper takes the A company as example which investigate the procurement strategy for various stage of enterprise development.The method of research uses literature Reviews to realize the definition of procurement and its role playing in the enterprise.Then we uses 80/20 rules to set the priority of every purchasing items.Then analyse every purchasing items with Kraljic matrix to get appropiate strategy.Afterwards,the paper introduces each stage of enterprise development and purchasing items in its industry.Then explore how to implement multiple types of strategies in the different steps by the case of A company.

The result of research shows the procurement strategy setting(hard rules) connects to quantity,price,the relationship of supply and demand
(buyer’s or seller’s market),no matter the enteprise is in the start-up
/growth/mature or decline step.Well goes the saying：every dog has its day ,due to the competitive status in the market is changeful, so most of enterprise are difficult to remain ever victorious in running operation.Despite of applying multiple strategies in turn , it’s more important to remain positive relationship , interaction and cooperation with suppliers(soft rules). In the future , nomatter how the economy and company goes , we look forward to holding the original intension and street-smart to manage our business with right strategy and attitude.

中文
1.王忠宗(1994)，採購Q&A，商周文化事業股份有限公司，台北市
2.中國採購管理協會(2001)，採購策略實務指南，台北市
3.方楊楷譯(2005)，Leenders,M.R.,Fearon, H.E. and England W. B.原著,採購與供應管理,Purchasing and material.美商麥格蘿.希爾國際股份有限公司台灣分公司，台北市
4.林英峰(2000)，全球供應鏈管理之趨勢，台北，北區中小企業研訓中心講義
5.金成隆、林修葳與紀信義(2004)，專利權的價值攸關性：從企業生命週期論析，管理學報，21卷2期：頁175-197
6.麥可波特(2010)，競爭優勢(上)，天下遠見出版股份有限公司，台北市
7.許成(1983)，採購與物料管理，五南圖書出版公司，台北市
8.許振邦(2007)，採購與供應管理，智勝文化事業有限公司，台北市
9.理查柯克(1998)，80/20法則，大塊文化出版股份有限公司，台北市
10.葉彬(1976)，企業採購，三民書局，台北市
11.童世遠(2008)，探討企業之供應商關係、信任與知識分享對組織績效的影響，國立交通大學管理科學系，碩士論文，新竹市
12.楊明壁審訂(2000)，Lee J. Krajewski,Larry P.Ritzman原著，作業管理與策略分析，台北，智勝文化美商普林帝斯霍爾合作出版
13.蔡忠平(2015)，採購策略管理：東貝光電車上機，國立台灣科技大學工業管理系EMBA，碩士論文，台北市
14. Tony Wild(2003)，庫存管理，藍鯨出版有限公司，台北市

英文
1.Anthony. J. and K. Ramesh.(1992) , "Association between Accounting Performance Measures and Stock Prices：A Test of the Life Cycle Hypothesis. Journal of Accounting & Economics",15:203~227.
2.Black,E,L.,1998a.Which is more Value-Relevant：Earnings or Cash Flows?A Life Cycle Examination Unpublished manuscript,University of Arkansas.
1998b.Life-cycle Impacts on the Incremental Value-Relevance of Earnings and Cash Flow Measures. The Journal of Financial Statement Analysis,(4)1:40-56
3.Chava Frankfort-Nachmias and David Nachimas(1992), Research and Methods in the Social Science,ch5&ch6,St.Martin’s press,New York.
4.Charles W. L. Hill & Gareth R. Jones(1998),"Strategic Management Theory-An Integrated Approach", Fourth Edition.
5.Haire,M.,1959.Biological Models and Empirical History of the Growth of Organizations. Modern Organizational Theory：New York：John Wiley and Sons.
6. Kim,J.I. and Shunk,D.L.,(2004),"Matching indirect Procurement Process with Different B2B e-Procurement systems",Computers in industry 53,pp153~164.
7. Lynall,M.D.,Golden,B.R. & Hillman,A.J.2003.Board Composition from Adolescence to Maturity：A Multitheoretic View. Academy of Management Review,28：416~431.
8.Rink,D.R. and J.E. Swan. 1979.Product Life Cycle Research：A Literature Review. Journal of Business Research,7(3)：219-242.
9.Wild, T.(2002),"Best Practice in Inventory Management",England.