Model for developing a database for risk analysis

The aim of this paper is to propose a new systemic modelling approach in order to model a complex task of maintenance and analyses its risks. This model combines Emmanuel two different tools belonging to systemic approach: UML (Unified Model Language) and MOSAR (Method Organized for a Systemic Analysis of Risk). The objective of this new model is to identify and to model the mechanism of hazard between sources of hazard and targets in maintenance activity. In addition, this methodology allows to quantify the criticality of risks and to treat them on a hierarchical basis according to several risk factors (human, technical, organizational and environmental). The UML-MOSAR methodology allows creating a database as an information system for learning from accidents and provides a comprehensive view that facilitates the understanding of the organization of a maintenance activity and leads to more effective analysis of its safety.