rda in a linked data world

RDA in a linked data world

Gordon DunsirePresented at CILIP RDA: Resource Description and

Access Executive Briefing 2014, 12 June 2014, London

Overview

Linked data 101RDA entities and relationshipsRDA and linked data

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

Person is Itemof

purchaserowner

autographer

borrowerdonor

photocopierconserver

Linked data goes both ways

Entity Entityrelationship

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

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

Corporate Body

Person

Family

FRBR/FRAD EntitiesDistinctWork

Expression

Manifestation

Item

Agent

One andonly one

One ormore

Primary/high-level relationships

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?

Corporate Body

Person

Family

RDA Entity relationshipsWork

Expression

Manifestation

Item pov: Description -> Access

Corporate Body

Person

Family

Work

Expression

Manifestation

Item

pov: Access -> Item

Usercontent

rdaregistry.info

Web view of RDA elements (for humans)

Open Metadata Registry: http://metadataregistry.org

Machine view of RDA elements

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

Thank you!

jscchair@rdatoolkit.orggordon@gordondunsire.com