隨著商業環境的快速變動，企業為因應市場快速變化，管理階層傾向於將專案規模縮小、目標明確來定義專案的範圍，以助於專案的執行，因此企業大多會執行一個以上的專案，然而專案彼此之間或多或少都會有些關聯與互動，良好的互動關係對於專案執行成效與企業均有其正面助益，因此本研究的目的在探討軟體專案特性對專案管理與專案間互動的影響之研究。 本研究以全球防毒軟體領導廠商-趨勢科技為例，其獨特的企業文化和指標性的企業管理模式，皆已成為國際型企業的典範。因此探討該公司運用雲端運算技術所成立的兩個專案進行研究，藉以探討專案特性、專案管理、專案間互動之關係。本研究經由個案訪談以及次級資料的分析探討，本研究之發現如下： 1.企業在執行軟體專案管理時，充分授權有助於激進式創新專案的開發進行。 2.領導者在軟體專案管理各階段所扮演的角色不同。當技術為外部來源時，領導者需要扮演協調溝通角色；當技術為內部來源時，領導者需要扮演技術支援角色。 3.企業在執行軟體專案管理時，會用師徒制來進行隱性知識的傳承；並利用文件管理系統來管理外顯知識。 4.當激進式創新的產品開發專案運用外部技術來源時，提供員工自我學習的空間，並透過知識分享討論會、知識管理系統、非正式溝通的多個群體協調活動，有助於專案間互動。 / In order to adapt to rapidly changing markets, cooperate managers tend to downsize the scales and define specific goals of projects for effective execution. Therefore, cooperates simultaneously deal with multiple projects which are inter-connected to each other. Good interactions benefit both projects and cooperate itself. Hence, the objective of this study is to investigate how the characteristics of software projects influence the managements and interactions of projects. The study subject is Trend Macro Incorporated, the world-wide leading company of antivirus software. Its unique culture and foremost management style have become the model example of international companies. Therefore, this study investigated two projects of this company, which apply cloud computing, to explore the relationships of the characteristics, management and interactions within and between projects. By case interview and secondary databases, the main findings of this study are listed below. 1.Enterprise in the implementation of software project management, the fully authorized to contribute to the development of radical innovation projects carried out. 2.Leader in software project management role of the different stages. When the technology to external sources, the leaders need to play the role of coordination and communication. When the technology for internal sources, leaders need to play a technical support role. 3.Enterprise in the implementation of software project management, we will use the apprenticeship system to carry out transmission of tacit knowledge; and to use document management system to manage explicit knowledge. 4.When the radical innovation of the product development project the use of external technology sources, to provide space for staff self-learning and knowledge sharing through seminars, knowledge management systems, informal communication between the various groups of coordination activities to facilitate interaction between projects.