rda: thinking globally, acting globally gordon dunsire presented at international developments in...

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BibO: Bibliographic Ontology Confusing tongues? BIBFRAME: Bibliographic Framework Say what we mean CRM: Conceptual Reference Model DC: Dublin Core FR: Functional Requirements ISBD: International Standard Bibliographic Description MARC21 RDA: Resource Description and Access schema.org UNIMARC KOS++ Universal Bibliographic Control RDF Thinking globally Acting locally

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RDA: thinking globally, acting globally Gordon Dunsire Presented at International Developments in Library Linked Data: Think Globally, Act Globally Part Two: an ALCTS Program, ALA Annual, Las Vegas, USA, 28 Jun 2014 Overview Failure of top-down approach RDA tools Case: intended audience Mapping the focus of description Top-down, bottom-up issues BibO: Bibliographic Ontology Confusing tongues? BIBFRAME: Bibliographic Framework Say what we mean CRM: Conceptual Reference Model DC: Dublin Core FR: Functional Requirements ISBD: International Standard Bibliographic Description MARC21 RDA: Resource Description and Access schema.org UNIMARC KOS++ Universal Bibliographic Control RDF Thinking globally Acting locally For unFRBRized applications 30 million (partial) examples Links to other vocabularies Element set + Relationship designators Globalizing RDA linked data Language-neutral URIs (immutable) Language-specific URIs (for developers) Language-specific labels and definitions (for humans) Unconstrained versions Map of Audience umarc: m adult, general adult, serious pbcore: adult adult m21: e adult MPAA: NC-17? BBFC: 18? Element sets (schema) Value vocabularies (KOS) Broader/narrower/same? m21: Target audience of m21: Target audience schema: audience dct: audience rdau: Intended audience isbd: has note on use or audience isbdu: has note on use or audience rdfs:subPropertyOf umarc: k bf: Intended audience frbrer: has intended audience rdaw: Intended audience isbd: Resource bf: Work bf: Instance rda: Work rda: Expression rda: Manifestation rda: Item isbd:P1193 (has work aspect ) isbd:P1190 (has expression aspect ) isbd:P1192 (has manifestation aspect ) isbd:P1191 (has item aspect ) rdae:P20231 (has work expressed) rdai:P40049 (has manifestation exemplified) rdam:P30139 (has expression manifested) bf: instanceOf bf: expressionOf marc21: Resource ? Mapping entities Top-down Examine local schema Identify the common elements Create a common/global element set (RDF) Refine the global element set to connect down (map) to specific local elements Issues Common elements may not cover the same space as local elements Refinement not possible Common elements have to be augmented Favours the global over the local Encourages a good-enough approach Bottom-up Publish the local schema(s) in RDF Map local elements from different schema to lowest common (dumber) elements add new elements if necessary Continue until all local schema have been mapped Issues Multiplicity of RDF element sets Frequent overlap and redundancy Local management resources Thank you! rdaregistry.info Published RDA element sets rdvocab.info Published RDA value vocabularies https://github.com/RDARegistry/RDA- Vocabularies https://github.com/RDARegistry/RDA- Vocabularies Project: versions, issues, feedback

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