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RDA in a linked data world
Gordon DunsirePresented at CILIP RDA: Resource Description and
Access Executive Briefing 2014, 12 June 2014, London
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Overview
Linked data 101RDA entities and relationshipsRDA and linked data
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Item is Personby
purchasedowned
autographed
borroweddonated
photocopiedconserved
Linked data links 2 specific thingsOf interest toLibrariesArchivesMuseums
Of interest toPublishers
Booksellers
The CrowdThe Cloud
Of interest to
Semantic Web
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Person is Itemof
purchaserowner
autographer
borrowerdonor
photocopierconserver
Linked data goes both ways
Entity Entityrelationship
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Person is Itemof
purchaserowner
autographer
borrowerdonor
photocopierconserver
Linked data needs identitiesWhich person? Which item?“Jane Smith,the author of‘Paper’, OUP, 2001”
“The one inthe Reference
section”
“Smith, Jane, 1975-” “0123-456-789”
UniformResourceIdentifier
{URI} {URI} For humans
{URI}For machinesGlobal
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RDA entities
Based on modern international modelsWork, Expression, Manifestation, Item, Person, Corporate
Body (FRBR)Family (FRAD)
Work-Expression-Manifestation-Item are discrete components of a resource. This avoids duplication of dataE.g. Work creator and Expression language are linked to, not
copied in, multiple Manifestation descriptions such as a printed book and e-book
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Corporate Body
Person
Family
FRBR/FRAD EntitiesDistinctWork
Expression
Manifestation
Item
Agent
One andonly one
One ormore
Primary/high-level relationships
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Complexity of relationships: Moby Dick
Ronald J. Murray: From Moby Dick to mash-upshttp://www.slideshare.net/RonMurray/from-mobydick-to-mashups
Printed editions
“OrsonWhales” mash-up (YouTube)
Diagram using FRBR entities and relationships
Films?
Gregory Peck?
Captain Ahab?
Led Zeppelin?
Whales in fiction?
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Corporate Body
Person
Family
RDA Entity relationshipsWork
Expression
Manifestation
Item pov: Description -> Access
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Corporate Body
Person
Family
Work
Expression
Manifestation
Item
pov: Access -> Item
Usercontent
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rdaregistry.info
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Web view of RDA elements (for humans)
Open Metadata Registry: http://metadataregistry.org
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Machine view of RDA elements
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RDA Entity Relationships To link To textWork 235 200 35Expression 235 190 45Manifestation 210 50 160Item 50 40 10Agent 225 175 50
RDA and linked data
A set of linkable entities rich enough to represent the complexity of and support access to global cultural heritage content.
A set of textual relationships rich enough to describe all types of content and carrier.
*Totals areapproximate