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Core concept · Entity & Knowledge Graph

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Definition

An entity type is the classification of an entity within a schema or knowledge system — the category that defines what kind of thing it is. Schema.org defines a hierarchy of entity types including Thing, Person, Organization, LocalBusiness, Product, Event, and many subtypes. Getting the type right — and declaring it explicitly through schema markup — ensures the entity is evaluated against the correct set of attributes and surfaces in the correct query contexts. A LocalBusiness entity is evaluated differently than an Organization entity; a Product is handled differently than a Service. Incorrect or missing type declarations are a silent source of AI miscategorization.

Entity schema

Entity categorization

Organization schema

Schema.org

Entity attribute

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