1. RDA and the IFLA Library Reference Model (LRM)
Gordon Dunsire
Chair, RDA Steering Committee
Lightning presentation at LD4P / LD4L-Labs Community Input Meeting, Stanford University
April 24-25, 2017

2. LRM and RDA
Consolidation and extension of FRBR, FRAD, FRSAD; compatible with CIDOC-CRM
All* RDA entities are compatible refinements of LRM
* except Person (non-humans excluded)
RDA refines LRM attributes and relationships (strings and things) as RDF sub-properties.
RDA "4-fold path" extension accommodates strings and things

3. 4-fold path in linked data
The “4-fold path” supports catalogue cards, flat file schema, RDBMS, and linked data (RDA database implementation scenarios)
unconstrained property
(no domain, no range)
external property
(non-FRBR)
subPropertyOf
"Unstructured description"
Datatype property
(literal range)
"Structured description"
SES/VES
canonical property
(no range)
range
"Identifier"
(local)
subPropertyOf
Object property
(entity range)
IRI
range

4. Open Metadata Registry
RDA Reference: LD4P frameworks
Atomic audit trail
Deprecation policy
Entities, element sets, value vocabularies
Semantic versioning:
Application roll-back
RDA editors:
Secretary
Translators
Open Metadata Registry
RDA/RDF
Developers
RDA Vocabularies
(GitHub)
Developers
RDA Toolkit
content
RIMMF3
data editor
RDA
Vocabulary
Server
RDA Registry
Cataloguers
Trainers;
Prototypers
Applications
Developers

5. Strategic issues for linked open data
Identity (IRI) management
The "linked" bit
Provenance management
The "open" bit
Otherwise, it's just "data"