Interdependencies modeling for the purpose of critical infrastructures protection

Critical Infrastructures are the systems that ensure the ease of use of crucial goods and services which are vital for the well-being of a society and the prosperity of an economy. However, the protection of these infrastructures is a difficult challenge, and must include many factors such as risks, resilience, control access, and interdependency. This paper focuses on Critical Infrastructures interdependencies. Thus networks are becoming tightly interdependent, especially for communication and computing systems that are firmly coupled with other networks, because of their current growing use and necessity for all sectors. Our objective is to study interdependencies in order to reduce their impacts and establish an effective procedure to prepare for future risks. This paper presents an overview on some modeling approaches and models used to analyze critical infrastructures interdependencies. Then it explains the idea of our future work that consists of conceiving application software to notify all nodes of interdependent networks of a failure emerging in a critical node, basing on the Implicative Interdependency Model.