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Controlled Vocabularies

The URR uses several controlled vocabularies to enable choices for certain attributes (see the glossary for explanation of the database-related terminology). Almost all of these controlled vocabularies are defined in the Lexicon (see the Semantics tutorial).

The Lexicon currently offers the following extentable controlled vocabularies (for details see the above link to the Semantics tutorial):

  • Acronyms;
  • Earth observation parameter;
  • Attributes;
  • Medium;
  • Glossary;
  • Essential variable;
  • Units;
  • Geographical Area;
  • Keywords.

An acronym is defined together with a term. The membership of a term in any of the other vocabularies is indicated by the respective choice of the select buttons.

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