現今，各行各業的公司為了提昇自己在市場上的競爭力而不斷的尋求各種的方法，例如尋求更合適的合作模式、或是簽定更合理的合約等。許多期望擁有更多競爭優勢的公司形成了想要建立策略聯盟的概念。建立策略聯盟合作關係的主要目標在於降低生產成本、提高產品品質、減少產品從開發生產到顧客手中的時間。
本篇論文的目的在於建立一個兩階段的決策模式以幫助中間者（the broker）在策略性規劃階段（the strategic level planning）與戰術性規劃階段（the tactical level planning）選擇合作夥伴。在此中間者所扮演的角色為一個代理商、或者是一個決策者、或者是一間擁有核心能力的公司。在此研究中發現，此兩階段的決策模式在幫助中間者選擇策略聯盟的合作夥伴時是具有實用性，同時在此模式中，中間者可以透過對每個作為合作夥伴的候選人進行連結成本的評估增加考量的依據以選擇適合的合作夥伴。除此之外，我們描述兩種不同的資訊流，一為傳統的單向資訊流（one-way flow of information），二為此論文中提出的雙向資訊流（two-way flow of information），並找出此兩種資訊流的不同，我們發現雙向資訊流在連結時間（Connection time）與訂單的反應時間（Response time for order）均佔有較好的優勢。

Nowadays, companies are searching for some ways to improve their competition by more suitable cooperation, more reasonable contract, etc. The concepts to form a supply chain alliance are framed by many companies that want to gain more advantage. The main purpose of forming a supply chain alliance is to lower product cost, to improve quality and to reduce the amount of time to bring the product to the customers.
The purpose of this thesis is to build a two-stage decision model for a broker to select his partners on both the strategic level planning and the tactical level planning. The broker acts as an agent or a decision maker or a company with the core competence. The conclusion is that the two-stage model is useful when choosing the partners, and that we can select our partners properly by setting the proper connecting cost for each candidates. Besides, we find out the difference between the two information flows (one-way flow of information and two way flow of information), and the two-way flow takes advantage in the “Connection time” and the ”Response time for order”.

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