https://www.falkordb.com/blog/understanding-ontologies-knowledge-graph-schemas/

This article explains ontologies and knowledge graphs, emphasizing their interconnectedness. Ontologies are defined as conceptual blueprints that structure data by specifying entities, relationships, and hierarchies, acting like a schema. Knowledge graphs, conversely, are the concrete implementations of these ontologies, representing real-world information in a structured, interconnected format. The article uses examples, such as a library system and a business context, to illustrate the components and functionalities of both, highlighting their importance for data integration, semantic reasoning, and AI applications. Finally, it details how ontologies enable efficient querying and inference within knowledge graphs.