IFLA LRM

Question 1

IFLA LRM

Answer 1

IFLA Library Reference Model

Question 2

LRM Definition

Answer 2

• A high-level conceptual reference model.
• Consolidates and supersedes the three previous IFLA models of FRBR, FRAD, and FRSAD, making them obsolete.
• Carries forward the essence of these models.

Question 3

LRM Origin

Answer 3

Replaced the separately developed IFLA conceptual models

• FRBR
• FRAD
• FRSAD

because they all had differing solutions for common issues.

RDA aligns with it as the practical cataloguing standard.

Question 4

5 LRM User Tasks

Answer 4

1. Find
2. Identify
3. Select
4. Obtain
5. Explore

*Same as RDA as RDA aligns with IFLA LRM.

Question 5

FR Similarities and Changes

Answer 5

• Some FR entities remained the same
  E.g.
  Work, expression, manifestation, item
• FRSAD’s THEMA was generalised to become RES
• New entities were introduced
  E.g.
  Agent, collective agent, time-span.
• WEMI entities continue to be the central part of the model.

Question 6

Res

Answer 6

• The superclass that includes all other entities in LRM.
• The starting point at the top of the entity hierarchy in LRM.
• Encompasses any entity in the bibliographic universe.
• Includes both physical and conceptual entities.

Question 7

Agent

Answer 7

• A subclass of Res and is also a superclass.

Encompasses any entity capable of
- Deliberate action
-Being granted rights
- Being held accountable for its actions.

Encompasses the three entities defined in the FR models:
- Persons
- Family
- Corporate bodies

There are two subclasses of agent:
- Person
- Collective agent

Question 8

Nomen

Answer 8

An association between an entity and a designation that refers to it.

• Two nomen associated with one person
  E.g.
  Lewis Carroll
  Charles Lutwidge Dodgeson
• Many nomen associated with one person
  E.g.
  Agatha Christie
  Mary Westmacott
  Lady Mallowan
  Agatha Mary Charissa Miller
• Two persons associated with one nomen
  E.g.
  Manfred B. Lee
  and
  Frederic Dannay
  both using the name Ellery Queen
• Many persons with one nomen
  E.g.
  Erin Hunter
  A collective pseudonym used by many authors.

Question 9

Different types of Nomen

Answer 9

• A string of characters in common usage
• An authorised access point
• An identifier

Question 10

Place

Answer 10

A given extent of space.

Question 11

Time-span

Answer 11

A temporal extent having a beginning, an end, and a duration.

Question 12

Bibliographic Identity

Answer 12

• A cluster of nomen used by a person in the same bibliographically significant context or contexts.

E.g.
Multiple pseudonyms for the same person

• May require multiple preferred access points in the cataloguing rules, but only single classification number.