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RDA: Alive and Well and Still Speaking MARC

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Presented at the meeting of the MARC Formats Interest Group at the American Library Association Annual Conference, Orlando, June 2016

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RDA: Alive and Well and Still Speaking MARC

  1. 1. A N D S T I L L S P E A K I N G M A R C RDA: ALIVE AND WELL
  2. 2. 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 ... 6/24/16 2
  3. 3. 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) 6/24/16 3
  4. 4. 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 6/24/16 4
  5. 5. Multilingual linked data French German Spanish Chinese … RDF as global language 6/24/16 5
  6. 6. RDA Registry: rdaregistry.info RDA Reference • Elements, attributes, relationships • Values • Other Glossary terms • Translations and partial translations 6/24/16 6
  7. 7. 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 6/24/16 7
  8. 8. http://rdaregistry.info/Elements/m/P30020 6/24/16 8
  9. 9. Unconstrained linked data Remove FRBR model to “dumb-down” semantics to common level of granularity “resources” and “agents” Example: Contributor Relates a resource to an agent contributing to a resource. 6/24/16 9
  10. 10. Multilingual data German translationSwedish work English cataloguer 6/24/16 10
  11. 11. French cataloguer Polylingual data 6/24/16 11
  12. 12. RIMMF relationship tree (R-Tree) 6/24/16 12
  13. 13. 6/24/16 13
  14. 14. Linked data vs Semantic Web Linked data: RDBMS Closed world Blank nodes Minimal semantics Local Semantic Web: RDF Open world All nodes identified Embedded semantics Global Easy to develop with local infrastructure Hard to develop with global infrastructure Dumb? Smart! 6/24/16 14
  15. 15. 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 (metadata.maven@gmail.com) Thanks to Gordon Dunsire for the use of his slides 6/24/16 15

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