Ontology gives AI systems shared meaning by providing structured systems of interrelated components that encode how meaning is used by AI systems. This guide explores ontology fundamentals, core components including concepts, properties, relationships and axioms, and how ontologies differ from knowledge graphs and semantic layers. It covers practical applications for enterprise AI, governance, and semantic search in 2026.
Year published: 2026
URL: https://atlan.com/know/ontology-101-explainer/