Unveiling the IFLA-LRM: Library Reference Model and Entity Relationships
Delve into the world of the International Federation of Library Associations and Institutions Library Reference Model (IFLA-LRM) and its significant role in consolidating various models like FRBR and FRAD. Explore the high-level conceptual model, entity relationships, and attributes that shape the foundation of this pivotal framework.
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Presentation Transcript
Introducing IFLA-LRM Gordon Dunsire, Chair, RSC Presented at Resource description for the 21st Century 13 August 2018, Canberra, Australia 1 Introducing IFLA-LRM March 18, 2025
Linked data diagrams A thing ; identified by a Uniform/Internationalized Resource Identifier Entity A relationship/property/predicate: has direction (subject predicate object) property label A string or literal data that can be displayed to humans Stuff 2 Introducing IFLA-LRM March 18, 2025
LRM 2017: Library Reference Model International Federation of Library Associations and Institutions (IFLA) LRM consolidates the FR family of models 1998: FR for Bibliographic Records (FRBR) 2009: FR for Authority Data (FRAD) 2010: FR for Subject Authority Data (FRSAD) 2011: Working Group on Aggregates report 3 Introducing IFLA-LRM March 18, 2025
LRM as a model High-level conceptual model Entity-relationship structure Intended for refinement by implementations By sub-typing entities, relationships, and attributes 4 Introducing IFLA-LRM March 18, 2025
LRM entities Retained: Work, Expression, Manifestation, Item, Person** Added: Agent, Collective Agent, Nomen, Place, Time-span + Res (super-class of other entities) 5 Introducing IFLA-LRM March 18, 2025
Res entity Super-class of all other LRM entities => What applies to Res applies to every other entity Attributes: Category, Note High-level relationships (associations) with other entities 6 Introducing IFLA-LRM March 18, 2025
Nomen entity A name (designation) of an entity has appellation Res Nomen All things have names has nomen string Nomen Nomen string 7 Introducing IFLA-LRM March 18, 2025
Nomen entity is appellation of Nomen Person Carroll, Lewis has nomen string Used in works for children has context of use Authority File (Work) has scheme of nomen 8 Introducing IFLA-LRM March 18, 2025
Agent entity Agent has sub-class has sub-class Collective Agent Person 1 2+ Real person who lives or is assumed to have lived 9 Introducing IFLA-LRM March 18, 2025
Manifestation statement LRM-E4-A4 A statement appearing in the manifestation and deemed to be significant for users to understand how the resource represents itself. normally transcribed from a source in a manifestation. Transcription conventions are codified by each implementation. Principle of representation User task: Identify 10 Introducing IFLA-LRM March 18, 2025
Work transformations LRM-R22 Work is transformation of Work Change of the scope or editorial policy (as in a serial or aggregating work), the genre or literary form (dramatization, novelization), target audience (adaptation for children), or style (paraphrase, imitation, parody) 11 Introducing IFLA-LRM March 18, 2025
LRM and RDA RDA was based on most of FRBR, some of FRAD, all of FRSAD (but mostly out of scope), and none of WGoA LRM is the opportunity to fill in gaps and reconcile incoherencies 12 Introducing IFLA-LRM March 18, 2025
LRM development Close monitoring by RDA Steering Commitee Cross-membership of FRBR Review Group RSC submission to world-wide review RSC took decision to align RDA with the LRM following outcomes of w-w review in 2016 13 Introducing IFLA-LRM March 18, 2025
RDA RDA is a package of data elements, guidelines, and instructions for creating library and cultural heritage resource metadata that are well-formed according to international models for user-focussed linked data applications. RDA Toolkit provides the user-focussed elements, guidelines, and instructions. RDA Registry provides the infrastructure for well-formed, linked, RDA data applications. Introducing IFLA-LRM
Is LRM suitable for RDA? LRM a high-level conceptual model intended as a guide or basis on which to elaborate cataloguing rules RDA guidance, instructions, elements operates at a greater level of generality than FRBRoo, which seeks to be comparable in terms of generality with CIDOC CRM RDA cultural heritage communities LRM this model is developed very much with semantic web technologies in mind RDA linked data communities Introducing IFLA-LRM
Impact of LRM More entities: Nomen, Place, Timespan, Agent, Collective Agent Shift from attributes to relationships LRM high-level entities, attributes, and relationships intended for refinement RDA is an implementation of the model 16 Introducing IFLA-LRM March 18, 2025
IFLA LRM and RDA entities Res is sub-class of RDA Entity = Any RDA Thing RDA Entity has appellation* Covers all other types of entity Nomen is created by W Place E Agent is sub-class is associated with of M Time-span Collective Agent I is modified by P** F C Introducing IFLA-LRM
LRM challenges for RDA Definition of Person entity excludes non- human personages RDA communities forewarned in 2013 Treatment of aggregates and serials Beyond AACR2 LRM optimized for linked data No mention in RDA, but part of strategy 18 Introducing IFLA-LRM March 18, 2025
LRM challenges for RDA Addition of Nomen entity Very strange but very useful for the 4-fold path (recording methods) and authority control Addition of manifestation statement element Separating transcription from recording 19 Introducing IFLA-LRM March 18, 2025
Thank you! 20 Introducing IFLA-LRM March 18, 2025
