Abstract. This paper presents SimfiaNeo, a new tool for model-based safety
analyses developed by Apsys-Airbus. Based on the AltaRica language, this tool
not only enables to edit and visualize models, but also offers efficient post-
treatment of cutsets and sequence sets, making it easier to analyze complex
model results. Document generation and model debug are improved with re-
spect to the existing tools. As we believe in models, the tool design is complete-
ly based on Eclipse Modeling Framework for a powerful interface!