Modelling critical infrastructures via a mixed holistic reductionistic approach

Infrastructure systems and their interaction mechanisms can be interpreted following a multitude of different approaches, depending on different perspectives and levels of abstraction. In this paper, we propose a mixed approach, in which different representations of the same infrastructure is used in order to define the interdependencies and interactions among infrastructures and their elements. We explicitly introduce into our model the three concepts of: infrastructure, component and interaction; and model, on one hand, intra-domain dependencies with a reductionistic approach and, on the other hand, inter-domain dependencies mainly using a holistic vision.