Types of Relations

There are two types of relations used to relate concepts in a thesaurus:

  • Hierarchical relations (1)

    States that two concepts are in a kind of parent/child or, more precisely, a broader/narrower relationship. Hierarchical relationships are always inverse relationships. So if the concept 'Germany' is broader than concept 'Berlin', concept 'Berlin' is narrower than the concept 'Germany'.

  • Associative relations (2)

    States that two concepts are related in some sense. Associative relationships are always symmetric relationships. So if the concept 'Berlin' is related to the concept 'Free University of Berlin', the concept 'Free University of Berlin' is automatically related to the concept 'Berlin'. The exact and close matching relations are special relation types. They are used for mapping concepts from different thesauri or mapping concepts of a thesaurus to concepts from other sources.

Feel free to add more labels and relations to your thesaurus.

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In the next step we will show you how to enrich your concepts with linked data.

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