The Joint Steering Committee for Development of RDA
<http://www.rda-jsc.org/>(JSC), the DCMI Bibliographic Metadata Task
Group
<http://wiki.dublincore.org/index.php/Bibliographic_Metadata_Task_Group><http://wiki.dublincore.org/index.php/Bibliographic_Metadata_Task_Group>(formerly
DCMI/RDA Task Group <http://dublincore.org/dcmirdataskgroup/> ), and ALA
Publishing
<http://www.ala.org/ala/aboutala/offices/publishing/index.cfm>(on behalf
of the co-publishers <http://www.aacr2.org/governance.html>of RDA) are
pleased to announce the publication of a second set of vocabulary terms
as linked open data. The RDA Carrier Type
<http://metadataregistry.org/vocabulary/show/id/46.html>, Content Type
<http://metadataregistry.org/vocabulary/show/id/45.html>and Media Type
<http://metadataregistry.org/vocabulary/show/id/37.html>vocabularies
have been reviewed, approved, and their status in the Open Metadata
Registry <http://metadataregistry.org/>(OMR) changed to 'published.'
The finished vocabularies can be viewed following the links from the
terms above. (The links lead to the description of the vocabulary
itself, the specific terms can be viewed under the tab for 'concepts').
Terms in the Content Type vocabulary refer to the intellectual or
artistic content of a resource, such as text or notated music; terms in
the Carrier Type vocabulary refer to the means and methods by which
content is conveyed including volume, sheet, computer disk; terms in the
Media Type vocabulary specify the general type of intermediation device
(if any) required to view, play or run the content of a resource.
These vocabularies are derived from the RDA/ONIX framework for
resource categorization
<http://www.loc.gov/marc/marbi/2007/5chair10.pdf>which established an
extensible methodology for categorization of resources according to
content and carrier.
Users of the RDA vocabularies on OMR may notice that German language
terms in the Carrier Type, Content Type and Media Type vocabularies
still have the status "newly proposed". "Terms" in the OMR are language
specific labels, which can be displayed to aid readability, but the URI
(Uniform Resource Identifier) is the persistent identifier for the
underlying concept. The status of the German terms will be reviewed
when the German translation has been completed and is stable.
Gordon Dunsire said "These vocabularies are crucial for the selection
and identification of information resources. Their publication as linked
data in RDF allows the terms to be used by all bibliographic metadata
communities in the Semantic Web environment. I look forward to the
future development and publication of mappings from the vocabularies to
the RDA/ONIX Framework. Similar mappings of other content and carrier
vocabularies, such as those for ISBD area 0, will support metadata
interoperability between communities and improve resource discovery for
all."
All the RDA vocabularies can be viewed in the OMR by using this page:
http://metadataregistry.org/rdabrowse.htm. Those interested in following
the work of review and publication of the vocabularies can subscribe to
the Registry RSS feeds linked from that page. Questions on the OMR can
be conveyed using the 'Feedback' link on each Registry page.
Questions or comments on the review process or the content of specific
vocabularies may be addressed to the Chair of the JSC, Barbara Tillett [
[email protected] <mailto:[email protected]> ] Questions and comments on the
encoding of the vocabularies or on the Open Metadata Registry may be
addressed to Diane Hillmann [[email protected]
<mailto:[email protected]>] or Gordon Dunsire
[[email protected] <mailto:[email protected]>].
