The growth of development of new technologies has not stopped since the industrial revolutions of the 18th and 19th centuries. Currently, production systems or controlled equipment (in English "Equipment Under control") designate complex and critical characteristics requiring a high level of performance in constant evolution, while confronting strong economic, human and environmental constraints. Generally, performance is a three-dimensional discipline represented by socio-economic efficiency, the quality of the service rendered and management efficiency. The main issue that characterizes it is that of failure, deduced through malicious acts, referring to dependability. This failure science is modeled by an acronym RMAS ("Reliability", "Maintainability", "Availability" and "Security"), consists of analyzing failures during a change in system behavior through the analysis of the mode of failure. This notion is at the heart of the Analysis of Operational Safety.

 With this in mind that our work aims to master technological systems and associated risks in order to objectively know their performance and help optimize them on the production, safety and environmental aspects, to then allow them to maintain their performance over time.