近來，公部門委外民間企業資訊科技的案子日益趨增，希望藉由加入民間企使專案的目標更加明確以及貼近實際的需求，也有分散風險的好處。而過去委外的研究，特別是針對複雜的大型資訊基礎建設的委外專案，多為二元組織的關係，但大型的專案要進行順利，所涉及的組織不僅限於委外雙方，而是需要擴展到雙方背後各自的網絡關係。
本研究從組織生態的觀點出發，以群落分析加上「網絡」的概念來討論政府與非政府組織間的合作。組織在網絡裡得以透過資源分享和追求共同目標來增加彼此的生存能力。在這種合作模式會創造出原先群落中不存在的資源來克服群落外環境的不確定性。本研究以組織生態理論為理論框架，彙整出大型資訊基礎建設委外案的發展歷程，並且運用生態過程的概念將其演化分成三個階段：群落生成階段、演化共生階段、結構維持階段。本文並把組織網絡圖轉為群落生態圖來闡述每個組織在群落中進入與退出、合作與共生的過程。最後由群落的結構、密度、中心性三點歸納出影響大型資訊基礎建置發展的因素：（1）網絡中組織之間的複雜程度與密集程度；（2）組織所擁有的連結多寡與強度。

In recent years, there has been an increasement of information infrastructure outsourcing projects. Governmental organizations hope for the projects to become more targeted and close to actual demands along with the benefit of spreading risks via cooperating with private companies. In earlier years, most of outsourcing research, particularly those focusing on the information infrastructure projects that came with complexity, took binary approaches. This study suggests that the factors contributing the success of those projects involve more than those emerging from both organizations of outsourcing. A more valid investigation needs to take into consideration of the whole network in which both parties are connected.
This study refers the cooperational relationships between governmental and non-governmental organizations as “networks,” taking from an organizational ecology scope along the aid of community level analysis. Interorganizational networks increase their viability through mutual resource-sharing and pursuing common goals. New resources can be generated in such a network mode of cooperation, which makes it capable of overcoming environment uncertainty. This study takes organizational ecology theory as its theoretical framework, and integrates data gathered from the process of large-scale information infrastructure outsourcing projects. In this paper, the study-case is discussed in terms of ecological process, which in turn is divided into three evolutionary phases: community initial phase, evolutionary symbiotic phase and structural maintenance phase. Furthermore, it presents a community ecology graph to illustrate every organization in community the entering and exiting and the process of cooperation and symbiosis. Finally, the paper suggests a conclusion derived from the community structure, density, and centrality of the study-case, and summarizes the factors that impact large-scale information infrastructure outsourcing developments in the network as (1) complexity and intensity of interorganizational relationships among the organizations, and (2) the amount of connective nodes that an organization has and their strengths.

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