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0320 Category Hierarchy

The vocabulary for a Glossary may be organized into a hierarchy of categories. These categories effectively provide a folder structure for the glossary.


  • GlossaryCategory represents a category in a glossary.
  • CategoryAnchor links each category to exactly one Glossary object. This means that this is its home glossary. If the Glossary object is deleted then so are all the categories linked to it.
  • CategoryHierarchyLink is a relationship used to organize categories into a hierarchy to, for example, create a structure for a taxonomy. A category may have none or one super-categories. However, this super-category may be in a different glossary.
  • LibraryCategoryReference provides reference information for how this category corresponds to a category in an external glossary.

Further information

  • SubjectArea is a classification for a category that indicates that the category represents a subject area.
  • The members of a category are GlossaryTerms.
  • A glossary term may be a member of multiple categories. However, the PrimaryCategory classification on a glossary term indicates which category is its primary category.