Publications Office of the EU
About reference data - EU Vocabularies
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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
Naujausią
Terms used in our reference data catalogue Trečiadienis, 2024, rugsėjis 18
How to extract a list of concepts from a vocabulary Trečiadienis, 2024, rugsėjis 18
About the use of Authority tables Pirmadienis, 2024, rugpjūtis 12
Identifiers and how to use more than one Ketvirtadienis, 2022, spalis 6
useContext property and how to use it Trečiadienis, 2022, gegužė 18
Labels and data models, why and how to use them Ketvirtadienis, 2022, gegužė 5
Dissemination formats Pirmadienis, 2022, sausio 24
Federated queries Sekmadienis, 2021, spalis 24
Populiariausių
Dissemination formats 57020 Peržiūros
useContext property and how to use it 55467 Peržiūros
Terms used in our reference data catalogue 55244 Peržiūros
Federated queries 55075 Peržiūros
About the use of Authority tables 53200 Peržiūros
Labels and data models, why and how to use them 52491 Peržiūros
Identifiers and how to use more than one 50444 Peržiūros
How to extract a list of concepts from a vocabulary 1 Rodyti
Child Articles (3)
  • 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 specificities and usage needs....

  • 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 available to the public to support interoperability...

  • 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 ASCII...