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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

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Rda thinking globally acting globally

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
Overview

  • Failure of top-down approach

  • RDA tools

  • Case: intended audience

  • Mapping the focus of description

  • Top-down, bottom-up issues


Acting locally

Universal

Bibliographic

Control

Thinking globally

KOS++

Confusing

tongues?

RDF

FR: Functional

Requirements

BIBFRAME:

Bibliographic

Framework

ISBD: International Standard

Bibliographic Description

Say what

we mean

DC: Dublin Core

BibO:

Bibliographic

Ontology

RDA: Resource

Description

and Access

CRM: Conceptual

Reference Model

MARC21

schema.org

UNIMARC


Element set +

Relationship

designators

Links to other

vocabularies

For unFRBRized

applications

30 million (partial)

examples


Globalizing RDA linked data

Language-specific

labels and definitions

(for humans)

Language-specific

URIs

(for developers)

Language-neutral

URIs

(immutable)


Map of

“Audience”

Element sets (schema)

Unconstrained

versions

Value vocabularies (KOS)

Broader/narrower/same?

rdfs:subPropertyOf

“adult”

schema:

“audience”

rdaw:

“Intended audience”

bf:

“Intended audience”

m21:

“Target audience”

frbrer:

“has intended audience”

isbd:

“has note on use or audience”

isbdu:

“has note on use or audience”

dct:

“audience”

rdau:

“Intended audience”

“adult”

pbcore:

adult

MPAA:

NC-17?

umarc:

m

umarc:

k

BBFC:

18?

m21:

e

“adult, general”

“adult, serious”

m21:

“Target audience of …”


Mapping

entities

rda:

Work

isbd:P1193 (has work aspect )

bf:

expressionOf

rdae:P20231 (has work expressed)

bf:

Work

isbd:P1190

(has expression aspect )

?

rda:

Expression

rdam:P30139

(has expression

manifested)

bf:

Instance

bf:

instanceOf

rda:

Manifestation

isbd:P1192

(has manifestation aspect )

marc21:

Resource

isbd:

Resource

rdai:P40049 (has manifestation exemplified)

rda:

Item

isbd:P1191 (has item aspect )


Top down
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
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
Thank you!

  • [email protected]

  • rdaregistry.info

    • Published RDA element sets

  • rdvocab.info

    • Published RDA value vocabularies

  • https://github.com/RDARegistry/RDA-Vocabularies

    • Project: versions, issues, feedback


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