為 了 評 估 關 鍵 基 礎 建 設 保 護 (Critical Infrastructure Protection, CIP) 的效能,各國均發展相關的模擬工具。本文首先提出影響關鍵基礎建設保護效能的因素和因素間的關係,並根據這些因素及關係,模擬基礎建設受攻擊後所引起的後續影響。此模擬可了解基礎建設的相互相依關係 (interdependencies)、可產生各種攻擊劇情以回答萬一如何(what-if)的問題、也可辨認關鍵基礎建設保護的弱點。In order to evaluate the effectiveness of Critical Infrastructure Protection (CIP) measures, many countries are engaged in developing related simulators. This paper first discusses the factors affecting CIP effectiveness and the relationships among these factors. Based on these factors and relationships, a simulation tool has been constructed to investigate the effects of interdependencies, to answer what-if questions, and to identify potential vulnerabilities of CIP.