RDA is intended as a full-blown realisation of FRBR, adding considerable detail to the skeleton provided by FRBR.
The body responsible for FRBR has not given authoritative RDF URIs for the FRBR concepts.
The RDA vocabularies have been finalised as of January 2014 at RDA Vocabualries
I pulled this out of the tar ball on the Work RDA Vocabulary in xml/Elements/w.xml
<!--Property: has title of the work-->
<rdf:Description rdf:about="http://rdaregistry.info/Elements/w/P10088">
<rdfs:isDefinedBy rdf:resource="http://rdaregistry.info/Elements/w/" />
<reg:status rdf:resource="http://metadataregistry.org/uri/RegStatus/1001" />
<reg:name xml:lang="en">titleOfTheWork</reg:name>
<rdfs:label xml:lang="en">has title of the work</rdfs:label>
<skos:definition xml:lang="en">Relates a work to a word, character, or group of words and/or characters by which a work is known.</skos:definition>
<rdf:type rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#Property" />
<rdfs:domain rdf:resource="http://rdaregistry.info/Elements/c/C10001" />
<rdfs:subPropertyOf rdf:resource="http://rdaregistry.info/Elements/u/P60367" />
<owl:sameAs rdf:resource="http://rdaregistry.info/Elements/w/titleOfTheWork" />
<reg:hasSubproperty rdf:resource="http://rdaregistry.info/Elements/w/P10086" />
<reg:hasSubproperty rdf:resource="http://rdaregistry.info/Elements/w/P10223" />
</rdf:Description>
Let's dissect this entry. The namespaces are
owl: http://www.w3.org/2002/07/owl#.
We haven't met Owl yet. That is another semantic framework with more power
than RDFS, and will be considered in a lot of detail in
subsequent chapters
rdfs: http://www.w3.org/2000/01/rdf-schema# .
The RDFS semantic terms
dc: http://purl.org/dc/elements/1.1/.
The Dublin Core elements
rdf: http://www.w3.org/1999/02/22-rdf-syntax-ns#. The RDF terms
skos: http://www.w3.org/2004/02/skos/core# SKOS
reg: http://metadataregistry.org/uri/profile/RegAp/
From the Open Metadata Registry
The RDF entries are
Description .
This is just a description of the property titleOfWork.
In fact the URL is the URL for this entry. That is,
if you just have the URL http://rdaregistry.info/Elements/w/P10088
then you can find the entry above. It is self-referential.
type . This is the RDF type of Property.
That is, it will take an object (a work) and have a value
(a title).
The RDFS entries are
label . Although RDFS is concerned with semantics, this
has no semantic content: it is just as a piece of text that the property
can be described by and is "has title of the work"
domain .
This one is a bit more tricky. if you look in the Elements/c.rdfa
file you will discover that C10001 is for an Owl Class
that is the same as the Work element.
Presumably that is how the FRBR concepts are currently represented
subPropertyOf . This states that titleOfWork
is a subproperty of another element P60367
and this has label "has title of the resource".
That is, the title of any work is also the title of the
resource when it is considered as a Resource rather than as
a Work
The Owl entry is sameAs.
While we haven't met Owl yet, this should be obvious that
it is the same property as its value titleOfTheWork
The Metadata elements label the status of this entry within the Metadata Registry.
Copyright © Jan Newmarch, jan@newmarch.name
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