關鍵基礎設施相依性在兩個關鍵基礎設施之間的關係被定義為一種雙向的關係，一產出是另一個的輸入。例如，如果某天然氣管線外洩並且發生爆炸，而後損害附近電信的設備，造成災害訊息不能有效地傳播，因此讓大火蔓延使天然氣的管線與電信設備所受的損害更嚴重。若能即時的救援外洩問題就可以避免電信設備的損害，也使資訊得以傳播進而減少天然氣管線的損傷。此外，這些關鍵基礎設施經常造成跨系統的複雜相依關係。由於國家關鍵基礎設施發展複雜性與相互關聯性增加，對於安全的威脅和關鍵基礎設施脆弱性也增加。因此，研究關鍵基礎設施怎樣相互作用成為一個重要的課題。本研究收集新竹科學園區某晶圓廠四大類關鍵基礎設施的相互牽動關係，過濾出只與外部因素或是關鍵基礎設施相依性造成的損害紀錄，瞭解時常發生的不同關鍵基礎設施之序列式破壞為何，並使用軟體找出各地區各類關鍵基礎設施服務水準下降對於其他關鍵基礎設施間的影響，找出維持重要基礎設施順利運作的其他項基礎設施，以確保重要基礎設施安全，最後並對此研究撰寫結論與建議。The research discusses applying the inoperability input-output model (IIM) to analysis of critical infrastructure interdependency.The IIM is based on Leontief's input-output model, which characterizes interdependencies among sectors in the economy.IIM can analyze initial disruptions to a set of sectors and the resulting ripple effects for modeling impacts of premeditated attacks on infrastructure interdependency. The IIM can systemically prioritize and manage the sectors deemed critical and also identify those sectors of which continued operability is critical during recovery. The knowledge discovery process, including the theory and methodology and case studies, extension of the IIM, analyzes different temporal frames of recovery and characterizes the required adjustments for achieving new balance levels. Discussion of modeling the facilities in a wafer fabrication facility in the Hsinchu Science and Industrial Park and a disaster mitigation approach to stopping IIM-related failure events is addressed, followed by the analysis results and sample infrastructure failure records. Disaster mitigation officials can employ the proposed approach to explore IIM and to design countermeasures when a disaster hits certain areas.
