Topic #0006
Ontology
Abstract
A formal system for defining the concepts within a domain and the relationships between them. Where a knowledge graph shows you the map, an ontology defines the rules for what kinds of things can appear on the map and how they're allowed to connect — the vocabulary and grammar of a knowledge system.
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Ontology (information science) , Wikipedia
Wikipedia's entry on ontology as used in information science — defining it as a formal naming and definition of types, properties, and relationships among entities in a domain. Covers its role in the Semantic Web, knowledge representation, and how it differs from a taxonomy or thesaurus.
Created: 2026-05-07 Updated: 2026-05-07
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