Glossary of terms relating to thesauri and other forms of structured vocabulary for information retrieval

Metadata

data that describes characteristics of a document

Metadata is essentially a catalogue record, providing (a) access points by which records of documents can be sorted or retrieved and (b) descriptive information, by which the relevance of a document can be assessed without consulting it in full. Preferred terms or notations selected during the indexing process are commonly applied as metadata elements to describe the subject of a document.

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