Guide
- IFLA Library Reference Model
- RDA entities
- RDA elements
- RDA values
- Data transformation
- Application profiles
- Customization
- Development history
For a list of prefixes used for compact URIs (curies), see Curie prefixes.
Refinement
Entities and elements
An RDA entity or element can be sub-typed for a local application.
Example of sub-typing an RDA element
‹ex:1› "has manifestation title statement" declared as a sub-property of rdam:P30293 "has manifestation title and responsibility statement"
A less formal refinement of an RDA entity can be made using its "category" element.
Example of categorizing an RDA entity
"screenplay" used as a value of rdaw:P10004 "has category of work".
Values
A concept from an RDA vocabulary encoding scheme can be refined by a narrower concept.
Example of refining an RDA value concept
‹ex:1› "iron" declared as narrower to rdamat:1022 "metal".