rda: alive and well and still speaking marc
TRANSCRIPT
A N D S T I L L S P E A K I N G M A RC
RDA: ALIVE AND WELL
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RDA: MORE THAN RULES
• RDA started out as AACR3, but that was a long time ago. Now RDA includes:• The RDA Registry: full versioned data services for libraries,
vendors, and others using RDA elements and content vocabularies
• A world-wide schedule of training efforts using RIMMF to show how RDA improves access to cultural heritage materials (see http://rballs.info for listing and data)
• The RDA Toolkit, a tool containing guidelines for principled application of RDA for a variety of materials
• Multilingual capability for French, Spanish, Italian, Chinese, with others to come …• Includes instruction, vocabularies, data ...
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LINKED DATA, FRBR AND RDF
• RDA data model based on FRBR (FRBR-less version available as ‘unconstrained’)• Using Resource Description Framework (RDF)• Designed for efficient machine-processing of metadata at
global scale (Semantic Web)• Based on ‘statements’ rather than ‘records’• Statements from a variety of sources can be aggregated
(providing multiple points of view & curated ‘packages’ of data for sharing)
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RDA IN RDF
• RDA controlled terminologies represented as RDF value vocabularies• Example: RDA carrier type vocabulary
• Entities, attributes, and relationships represented as RDF element sets• Entities represented in RDF as classes• Attributes and relationships represented in RDF as
properties (“predicates”)• Example: RDA manifestation properties
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Multilingual linked data
FrenchGermanSpanishChinese…
RDF as global language
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RDA Registry: rdaregistry.info
RDA Reference• Elements, attributes, relationships• Values• Other Glossary terms• Translations and partial translations
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Formal or canonical URI is “opaque”- not intended for human readability
Lexical URI is intended for human readability in different languages
RDF linked data serializations
Except HTML for humans
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Unconstrained linked data
Remove FRBR model
to“dumb-down”
semantics to common
level of granularity
“resources” and
“agents”
Example: ContributorRelates a resource to an agent contributing to a
resource.
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Multilingual data
German translationSwedish work English cataloguer6/24/16
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Polylingual data
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RIMMF relationship tree (R-Tree)
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Linked data vs Semantic Web
Linked data:RDBMSClosed worldBlank nodesMinimal semanticsLocal
Semantic Web:RDFOpen worldAll nodes identifiedEmbedded semanticsGlobal
Easy to develop with local infrastructure
Hard to develop with global infrastructure
Dumb? Smart!
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THANK YOU!
• Links:• Open Metadata Registry (OMR) = http://metadataregistry.org• RDA Registry = http://RDAregistry.info• RDA Registry issues reporting =
https://github.com/RDARegistry/RDA-Vocabularies/issues• Rballs.info = http://rballs.info• RIMMF = http://www.marcofquality.com/wiki/rimmf3/doku.php?
id=rimmf• Contact:• Diane I. Hillmann ([email protected])
Thanks to Gordon Dunsire for the use of his slides
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