Gabriele Oliva, Stefano Panzieri and Roberto Setola, "Modelling and Simulation of Critical Infrastructures," In CRITICAL INFRASTRUCTURE SECURITY: Assessment, Prevention, Detection, Response, WIT press, 2012. (isbn:978-1845645625)
While the knowledge of human operators and stakeholders is becoming more and more sector-specific, infrastructures are becoming more and more interoperable and interdependent. Hence representing the behavior and the characteristics of such a scenario is a mandatory task, in order to assess the risk of multiple disrup- tions and domino effects, and in order to provide adequate policies and counter- measures to react to structural vulnerabilities, failures, or even intentional attacks. In the literature many approaches have been proposed; holistic methods consider infrastructures with an high level of abstraction, while topological frameworks consider the interaction of multiple homogeneous subsystems. Nevertheless, sim- ulative approaches are focused on a detailed representation of isolated subsystems or agents, evaluating their interaction by means of simulation platforms. Finally multi-layer methodologies consider interconnected agents according to multiple levels of abstraction or perspectives.