「安全」是制定國防政策最重要的考量，無論任何國家競爭策略，均應以國防安全為前提，因此也就更突顯國防戰略規劃的重要性，而國防戰略為國家戰略中的一個重要環節，如何將有限的國家資源妥善分配及有限的國防資源發揮最大效能，掌握軍事競爭優勢，更是國防建軍成敗之關鍵。本文主要研究的「淨評估」方法，結合企業管理理論，從「策略規劃」的理論基礎出發，透過競爭優勢的分析邏輯（即SWOT分析），建立「淨評估」的理論與應用邏輯及「淨評估」的作業分析模式，使國家層級實務面的戰略規劃體系架構更為明確，所以，透過「淨評估」理論的發現，能夠將企業環境中的策略管理理論，應用到國家安全競爭優勢的分析方面，使國防管理與企業管理緊密結合。

"Safety" is to formulate defense policy of the most important considerations. Regardless of any national competition policy should be based on national security as a precondition. Therefore, it also highlighted the importance of the defense strategy planning. Defense strategy for the national strategy is an important part. How to properly allocate limited national resources and limited defense resources to achieve maximum performance. Master military competitive advantage is the key to the success of the defense army. "Net assessment" approach paper studies, combined with the business management theory. From the theoretical basis of the "Strategic Plan" starting by analyzing the logic of competitive advantage (SWOT analysis). Create a "net assessment" of the theory and application logic and "net assessment" activity analysis model, so that the national-level strategic planning architecture practices face more clearly. So, through the "net assessment" discovery theory, strategic management theory can be in an enterprise environment. Applied to the analysis of the competitive advantage of national security, national defense management and enterprise management closely.