- IFLA Library Reference Model
- RDA entities
- RDA elements
- RDA values
- Data transformation
- Application profiles
- Development history
For a list of prefixes used for compact URIs (curies), see Curie prefixes.
Entities and elements
The addition of an RDA entity or element to extend the semantics of RDA is carried out within the RDA Registry following established procedures.
A new concept can be added to an RDA vocabulary encoding scheme represented by a value vocabulary if the existing concepts do not cover the scope of the vocabulary.
Example of extension of an RDA value vocabulary
‹ex:1› "bone" used as a value of rdam:P30304 "has material"