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A metadata repository may contain many glossaries, particularly when it is part of a bigger enterprise cluster of repositories.  Each glossary may come from a specific team or external organization.  Or it may be focused on a particular topic or set of use cases.  Figure 2 shows how a glossary is defined.

 

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Figure 2: The glossary object provides the anchor point for the glossary content

 

The anchor for each glossary is the Glossary object. 

The classifications associated with the glossary object are used to document the type of vocabulary it contains and its purpose:

  • Taxonomy - This is a glossary where the terms have been organized into a category hierarchy that reflects their meaning or use.
  • Canonical Vocabulary - this glossary provides the standard vocabulary definitions for an organization.  Typically terms from other glossaries are linked to terms from the canonical glossary.
  • ExternallySourcedGlossary - The content from this glossary comes from an external source.  It may be, for example an industry-specific glossary, or from a standards body, or from an open data site, or from a commercial organization.

These classifications are independent of one another so a Glossary object may have none, one or all of these classifications attached.

 

 

Category Hierarchies

The vocabulary for the glossary is organized into a hierarchy of categories.  These categories effectively provide a folder structure for the glossary.  Figure 3 shows the definition for a glossary category.

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