Contribution to risk management in industrial maintenance

Safety in maintenance seems particularly important due to the fact that maintenance situations are critical to the safety of operators. In addition to the nature of maintenance intervention, the criticality of maintenance tasks results also from the organizational environment in which they are carried out. This environment is composed of several elements that are human, technical and organizational, which are organized in order to achieve an intervention. This environment makes maintenance not only critical situations, but also complex situations. These are the views that will be developed in this paper, through the development of a methodological approach founded on systemic and consists of two phases. The first phase consists of risk analysis which is represented as a process of modeling a maintenance situation using two operational tools namely, UML (Unified Modeling Language) and the MADS (Analysis Method of Dysfunctional Systems) model. The second phase corresponds to risk management in maintenance by developing a synthetic approach in order to protect the health and safety of operators.