Critical Infrastructures Governance Exploring SCADA Cybernetics through Architectured Policy Semantic

SCADA-systems are very complex, sophisticated and integrated systems which support people in monitoring and governing the huge volumes of knowledge engendered by critical infrastructures (industry, energy, transport, and healthcare). These systems are elaborated upon a colossal range of precontrived components which need to interact thoroughly with each other although, a priori, they all use heterogeneous technologies and protocols, they behave unevenly through the SCADA architecture, and they are all located in miscellaneous corners of the production system. Furthermore, these components interact, amongst other, by means of policies which formulate the reasoning for component behaviour in terms of expecting actions realization or in terms of accessed information. This paper explores these policies´ semantic through a unified component modelling approach with the aim of providing a homogeneous and coherent framework, adapted for the governance of the system by all SCADA and non-SCADA operators.