Research on the Construction Method of System Off-nominal States Model Based on Ontology Model

In view of the current lack of ontology model construction methods for system anomalies, and the inconsistent information expression of each analysis model and the difficulty of integrating correlation analysis, this paper combines ontology theory to construct failure analysis ontology models and anomaly analysis ontology models respectively, and then synthesizes them to form anomaly and failure comprehensive analysis ontology model. Through the comprehensive analysis model, the coordination between system design and system off-normal state analysis is realized, which lays a foundation for the follow-up application model to carry out reliability and security analysis and design.