Narrower Term field
The Narrower Term field records a term that is one level lower than the current term.
How this field works
Whenever you enter a Next Higher Term for a term, Vernon automatically fills the Broader Term and Narrower Term fields. The system also maintains a reciprocal relationship between a Broader Term and a Narrower Term.
For example, if you enter California as the Next Higher Term of San Francisco, Vernon will also:
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Enter California as a Broader Term for San Francisco.
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Enter San Francisco as a Narrower Term for California.
The reverse is also true. If you enter a term into the Narrower Term field, Vernon will enter the current term into the Broader Term field for that term.
This relationship allows Vernon to search effectively through various levels of a hierarchy.
For example, once these relationships have been established, a search on California can locate records associated with California and all the places in California.
Field details
Field type
Internal field name
AU_NARROWER
Location
Thesaurus tab of hierarchical authority files
Searching on this field
Use a Select Statement.
Reporting on this field
Select Narrower Term in Reporting.
You can sort on this field.
