International audienceThis paper addresses the problem of safety evaluation of complex systems. It proposes an original and rigorous approach that integrates safety analysis in system engineering processes. The approach is based on system engineering (SE) principles and uses the famous industrial SE standard ANSI/EIA-632. The objective is to help designers and safety engineers in safety management of complex systems. For an efficient design, the model driven design is adopted through the definition of an information model. The system language SysML (System Modeling Language) is used to address requirements definition and their traceability towards the solution and the Verification and Validation (V&V) elements. This common language allows s...