RDA and Linked DataSteve HenryUniversity of MarylandMarch 2, 2013

Encoding RDA Data

•One more time: RDA is a content standard not a display standard▫It is also not an encoding standard

•Examples so far have shown RDA in a MARC environment

•But RDA is also designed to be flexible.▫Can be encoded in MODS, Dublin Core,

etc….▫…and in RDF

The Briefest Intro to RDF That Has Ever Been

RDF -Resource Description Framework•RDF is a Web standard for describing any

thing, concept, or relationship•Each thing, concept, and relationship is

represented by a globally unique URI•Relationships between these entities are

represented by RDA triples in the form: subject, predicate, object

•For example…

has composer

Beethoven, Ludwig van, 1770-1827

Beethoven, Ludwig van, 1770-1827. Symphonies, no. 1, op. 21, C major

http://id.loc.gov/authorities/names/no97075604

http://rdvocab.info/roles/composer

http://id.loc.gov/authorities/names/n79107741

http://id.loc.gov/authorities/names/no97075604

http://rdvocab.info/roles/composer

http://id.loc.gov/authorities/names/n79107741

Linked Data

•A set of best practices for ▫Sharing data▫On the Web▫In machine-readable form

•Four rules▫Provide a URI▫Make the URI an HTTP URL▫Provide interesting information▫Link to other URIs so more things can be

discovered

sameAs

sameAs

Hey. We’re Doing Linked Data!

What about bibliographic records

http://id.loc.gov/authorities/names/n80050147

http://umaryland.worldcat.org/oclc/10262450

http://www.geonames.org/maps/google_40.714_-74.006.html

BIBFRAME

•Full name: Bibliographic Framework Transition Initiative

•Initiative of the Library of Congress•Essentially a linked data model for library

bibliographic data•Potential replacement/supplement for

MARC

Source: http://bibframe.org/vocab/

parodyOf

reprintOf

BIBFRAME

•Each instance gets a URI•Relationships between works, instances,

authorities, places, recorded•Needs to be harmonized with FRBR—

Expressions?▫FRBR seen as an abstract model▫BIBFRAME is a Web implementation

BIBFRAME Timeline

•May 2011: Initiative announced•May 2012. Zepheira contracted•Fall 2012. Use cases tested•November 2012. Bibliographic

Framework as a Web of Data (high-level model)

•October and December 2012. Face-to-face meetings with early experimenters

Early Experimenters

•British Library•Deutsche National Bibliotek DNB•George Washington University Library•National Library of Medicine•Princeton Library

Bibliography

•https://delicious.com/spurioso/tag_bundle/LinkedData

•Great introductory video!▫http://

www.youtube.com/watch?v=4x_xzT5eF5Q•http://linkeddata.org/•http://bibframe.org/•http://

listserv.loc.gov/listarch/bibframe.html•http://rdvocab.info/

How Does This All Relate??

RDA MDRDiscover

y

BIBFRAME

Linked Data

Some examples of how all this fits together

Rule of Three

Attributes for Persons

Medium of Performance

What to do now?

•Talk to vendors▫Show them MDR▫Ask them what their plans are for L.D.

•Follow BIBFRAME development▫Bibframe.org▫bibframe@listserv.loc.gov

•Look for RDA records in your discovery tools▫Think about search strategies▫Ask a cataloger for help!

•Link your data▫Discographies, bibliographies, thematic

catalogs▫Digital Humanities projects

Thanks!