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#taxonomy
About Taxonomies & Controlled Vocabularies
An ontology is a richer thesaurus
An ontology, like a thesaurus, is a kind of taxonomy with structure and specific types of relationships between terms. In an ontology the types of relationships are greater in number and more specific in their function. Relationships could include, for example, located in to…
Controlled vocabularies as authority files
A controlled vocabulary, also called an authority file, is an authoritative list of terms to be used in indexing (human or automated). A controlled vocabulary for a project might actually include multiple authority files for different kinds of terms. Controlled vocabularies are…
Taxonomies, polyhierarchies and facets
A taxonomy is typically a controlled vocabulary with a hierarchical structure, with the understanding that there are different definitions of a hierarchy. Terms within a taxonomy have relations to other terms within the taxonomy. These are typically: parent/broader term…