Publications Office of the EU
About reference data - EU Vocabularies
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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
Most Recent
About the use of Named Authority Lists (NALs) piektdiena, 2025, 23 maijs
How to extract a list of concepts from a vocabulary piektdiena, 2025, 23 maijs
Terms used in our reference data catalogue piektdiena, 2025, 23 maijs
Dissemination formats piektdiena, 2025, 23 maijs
useContext property and how to use it piektdiena, 2025, 23 maijs
Labels and data models, why and how to use them piektdiena, 2025, 23 maijs
Identifiers and how to use more than one piektdiena, 2025, 23 maijs
Federated queries piektdiena, 2025, 23 maijs
Most Popular
Dissemination formats 57022 Views
useContext property and how to use it 55469 Views
Terms used in our reference data catalogue 55246 Views
Federated queries 55077 Views
About the use of Named Authority Lists (NALs) 53205 Views
Labels and data models, why and how to use them 52495 Views
Identifiers and how to use more than one 50446 Views
How to extract a list of concepts from a vocabulary 3 Views
Child Articles (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...