Guide

Internal semantics

The RDA classes and properties have consistent semantics and explicit coverage of all levels of semantic hierarchy.

This allows the easy and reliable transformation of an RDA metadata statement to any broader level of semantics within RDA.

The declaration of a domain for every element and a range for the object version of a relationship element encapsulates entity typing within a single RDA metadata statement. The predicate of a statement determines the type of its subject and object.

Examples of usage

Statement Notes
subject predicate object
‹ex:1› ‹rdawo:P10249› ‹ex:2› RDA statement; IRI
‹ex:1› ‹rdf:type› ‹rdac:C10001› Entailed from domain
‹ex:2› ‹rdf:type› ‹rdac:C10004› Entailed from range
‹ex:1› ‹rdawo:P10436› ‹ex:2› Entailed from sub-property relationship
‹ex:1› ‹rdawo:P10203› ‹ex:2› Entailed from sub-property relationship
‹ex:1› ‹rdaxo:P00001› ‹ex:2› Entailed from sub-property relationship chains
‹ex:1› ‹rdf:type› ‹rdac:C10013› Entailed from sub-class relationship chains
‹ex:2› ‹rdf:type› ‹rdac:C10013› Entailed from sub-class relationship chains

Prefixes:

rdf: http://www.w3.org/1999/02/22-rdf-syntax-ns#