Publications Office of the EU
About reference data - EU Vocabularies
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Semantic knowledge base - title

Semantic knowledge base

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About reference data

Reference data, such as code lists and authority tables, means data that are used to characterise or relate to other data. Such a controlled vocabulary defines the permissible values to be used in a specific field for example as metadata. Reference data vocabularies are fundamental building blocks of most information systems. Using common interoperable reference data is essential for achieving interoperability.

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reference data vocabularies metadata interoperability thesauri taxonomy ontology controlled vocabularies
Uusin
About the use of Named Authority Lists (NALs) 23. toukokuuta 2025
How to extract a list of concepts from a vocabulary 23. toukokuuta 2025
Terms used in our reference data catalogue 23. toukokuuta 2025
Dissemination formats 23. toukokuuta 2025
useContext property and how to use it 23. toukokuuta 2025
Labels and data models, why and how to use them 23. toukokuuta 2025
Identifiers and how to use more than one 23. toukokuuta 2025
Federated queries 23. toukokuuta 2025
Suosituin
Dissemination formats 57022 kertaa luettu
useContext property and how to use it 55469 kertaa luettu
Terms used in our reference data catalogue 55246 kertaa luettu
Federated queries 55077 kertaa luettu
About the use of Named Authority Lists (NALs) 53205 kertaa luettu
Labels and data models, why and how to use them 52495 kertaa luettu
Identifiers and how to use more than one 50446 kertaa luettu
How to extract a list of concepts from a vocabulary 3 kertaa luettu
Aliartikkelit (3)
  • Dissemination formats

    Dissemination formats Our reference data catalogue contains more than 150 datasets spanning from simple code lists to taxonomies, schemas and ontologies. Each specific type has its own...

  • Terms used in our reference data catalogue

    Terms used in our reference data catalogue The reference data catalogue published on the Publications Office website is a dynamic set of data models , thesauri and taxonomies that are made...

  • What is a URI

    What is a URI A Uniform Resource Identifier (URI) is a compact sequence of characters that identifies an abstract or physical resource (IETF RFC3986). URIs are specified as being written only in...