隨著企業内部採用的電腦軟體越趨多元與廣泛，企業侵犯電腦軟體著作權的案例也日漸增加。企業因未建立合宜的著作權侵權防禦機制而暴露在著作權侵權訴訟的風險之下。本研究應用内容分析法面對面親訪5位著作權侵權訴訟經驗豐富的台灣資訊通路產業主管，萃取出12項著作權侵權防禦機制之關鍵指標。並運用決策試驗與實驗評估法(DEMATEL)進一步將指出決策者典範與支持、侵權懲處與軟體稽核三項關鍵因素是決定著作權侵權防禦機制成效的主要因素，其中決策者典範與支持為關鍵支配因素。企業主得以參考分析結果所繪製之高影響因素與受影響因素關係圖管理與擬定著作權侵權管理機制之執行方針，有助企業主於短期内建構適合自身企業的著作權侵權防禦機制。

With the widely use of computer software within the enterprise, the software copyright infringement case also increase day-by. Enterprises for failing to establish appropriate copyright infringement defense mechanisms exposed to the risk of copyright infringement litigation. This study interviewed five copyright infringement litigation experienced experts face to face and applied content analysis method to extract the 12 key indicators of the defense mechanisms of copyright infringement. The Decision Making Trial and Evaluation Laboratory (DEMATEL) was further used to identify the indicators into reason group index table with the results of group index. The study concluded that the decision-makers' model and support, infringement punishment, and software audit are three key factors in determine the effectiveness of the defense mechanisms of copyright infringement. Among these factors, decision-makers' model and support is the key dominant factor. The result of this research can be reference for managers while developing and implementing the copyright infringement defense mechanism.