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RDA Resource Description and Access. N.S. Harinarayana Associate Professor Department of Library and Information Science University of Mysore, Mysore. RDA: Resource Description and Access. The successor to AACR2 Released in 2010 - PowerPoint PPT Presentation
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RDAResource Description and Access
N.S. HarinarayanaAssociate ProfessorDepartment of Library and Information ScienceUniversity of Mysore, Mysore
RDA: Resource Description and Access
• The successor to AACR2
• Released in 2010
• Primarily web-based (RDA Toolkit), but also in but also in print form at a later stage– Text is not read in a linear fashion
– Text is repeated whenever needed to support Hyperlink
• Based on concepts from FRBR (Functional Requirements for Bibliographic Records)
RDA: Who is responsible?
• Joint Steering Committee (JSC)– American Library Association (ALA)
– Australian Committee on Cataloguing (ACOC)
– British Library (BL)
– Canadian Committee on Cataloguing (CCC)
– Chartered Institute of Library and Information Professionals (CILIP)
– Library of Congress (LC)
• Assisted by JSC Secretary and RDA Project
Manager
• JSC reports to the Committee of Principals (CoP)
RDA Acronyms
• FRBR– Functional Requirements for Bibliographic Records
• FRAD– Functional Requirements for Authority Data
• FRSAR– Functional Requirements for Subject Authority Records
• ISBD– International Standard Bibliographic Description
Adopting RDA
• Who is RDA for?– Libraries
– Metadata community
• Museums, archives, educators, publishers• Dublin Core compatibility
• What about training?– NLA will be working with various training agencies in Australia to
make the materials available and accessible to all users
New standard : why?
• Simplify rules – Encourage use as a content standard for metadata schema
– Encourage international applicability
• Goes past AACR2 in cataloguing digital resources– Flexibility to accommodate newly emerging resources
• Support flexible catalogues– It’s about recording data, not the presentation of this data
• Provide more consistency– Rules will be applied independent of any particular syntax or structure
New standard : why? – cont.
• Emphasis on helping users by providing information– they need to find, identify, select and obtain
information resources
• Recognizes that libraries now operate in a digital web based environment.
• Support integration of library catalogue records with those produced by other metadata communities.
New standard : why? – cont.
• Address current problems
• Principle-based– To build cataloguer’s judgment– Encourage application of FRBR/FRAD
ATTRIBUTES
Student
Name Address Class Roll number Percentage
Descriptive properties possessed by Descriptive properties possessed by each member of an entity set.each member of an entity set.
ENTITY SET/TYPE:
Student A Student B Student C Student D
ENTITY SET : STUDENT
Set of entities of the same type that Set of entities of the same type that share the same attributes. share the same attributes.
STUDENT A STUDENT B STUDENT C STUDENT D
Mr. A Mr.DMr. CMr. B
ENTITY SET : STUDENT
ENTITY SET : TEACHER
What is relationship?
Meaningful association among Meaningful association among several entities.several entities.
RELATIONSHIP SET/TYPE:
A set of relationships of the same A set of relationships of the same type.type.
Student A
Student C
Student B
Mr. C
Mr. B
Mr. A
ENTITY SET : STUDENT ENTITY SET : TEACHER
RELATIONSHIP SET : SUBJECT
DEGREE OF RELATIONSHIP SET
The number of entity sets that The number of entity sets that participate in a relationship set.participate in a relationship set.
Student A
Student C
Student B
Mr. C
Mr. B
Mr. A
ENTITY SET : STUDENT ENTITY SET : TEACHER
RELATIONSHIP SET : SUBJECT
TYPES OF ATTRIBUTES
• Single and composite:
1. roll number is an example of single attribute as it can not be divided further.
2. Name can be divided further into 3 parts consisting of first name , middle name , last name so it is an example of composite attribute.
TYPES OF ATTRIBUTES
• Single valued and multivalued:
1. The attributes which have single value are single valued attributes such roll number.
2. The attributes which has a set of values are called multivalued attributes. Such as any student can have more than 1 telephone number .
TYPES OF ATTRIBUTES
• Derived attribute:
–These attributes are derived from the existing attributes of entities.
–The value of a derived attribute is not stored , but computed when required.
TYPES OF ATTRIBUTES
• Descriptive attribute:
–The attribute of the relationship is called descriptive attribute.
Cardinality
• One to many
• Many to one
• One to one
• Many to many
It expresses the number of entities to which It expresses the number of entities to which another entity can be associated via a relationship another entity can be associated via a relationship set.set.
Key FRBR concepts
• An entity relationship model• FRBR Group 1 entities:
• Work • Expression• Manifestation• Item
• FRBR Group 2 entities:• Persons, corporate bodies
• FRBR user tasks:• Find, Identify, Select, Obtain
WorkWork
ExpressionExpression
ManifestationManifestation
ItemItem
is exemplified byone
many
is embodied in
FRBR Entity Relationships
is realized through
Based on the slide by Barbara Tillett, LCSlide by Barbara Tillett, LC
Work
Videorecording of the text
Print version
Abridged edition version DVD
Copies owned by the library
Language edition of the text
Online version
Is created by Person or Corporate body
Is realized by Person orCorporate body
is produced by Person or Corporate body
FRBR Entity Relationships
Videocassette
Work
Expression
Manifestation
Item
Group 1 entities
The “idea” of The Lord of the Rings:e.g., the novel; the “movie”; the score.
The embodiment of The Lord of the Rings: e.g. CD audio book ISBN-13: 978-0007141326 ; or Audio Cassette ISBN 0007127448
An exemplar of a manifestation of, “The Lord of the Rings”, e.g.: My copy!.
The realisation of The Lord of the Rings in one or more modes of expression: e.g. “English text”, “French translation”, “performance”, the director’s cut.
Work
Expression
Manifestation
Item
Slide by Alan Danskin, British Library
• Collocation– Better organization of the catalogue
• Easier cataloging– The ability to customize rules to suit a specific type of material. RDA will make it
easier to identify basic instructions and ignore detailed instructions that are
required for a more complex level of description
– The ability to retrieve rules for unfamiliar formats and save them as a workflow
– The ability to add users’ notes online and integrate rule interpretations and any
institution policies
FRBR Benefits
• Reduction in cataloging load
– Work only catalogued once for all expressions of it – Expression only cataloged once for all manifestations of it– Item cataloging (already simple) remains the same
• Circulation– Place holds at Work or Expression level rather than only
at Manifestation level
FRBR Benefits
Critical Differences (Changes) Between AACR2 and RDA
• Level of description– Comprehensive description
– Analytical description
– Multilevel description
• Structure
• GMD/SMD [content: carrier or the physical format]– Includes the carrier and type of media
• Music CD might be displayed as [music recording: CD audio], and• Videocassette might be displayed as [moving image: video VHS]• Map or Atlas on CD-ROM might be displayed as [cartographic resource: digital]
– Global edit and replace function will be able to map the existing GMD to its new value in the new field
Critical Differences (Changes) Between AACR2 and RDA – cont.
• Punctuation – punctuation not integral
BUT– Can be mapped to existing MARC punctuation or any other Schema used
(such as Dublin Core, .HTML, etc.)– Retrospective cataloguing is not required as there will be no significant
changes
• Compatible with AACR2– Instructions are not different but grouped and presented differently– Retrospective adjustment will be minimal – only where rules on
access point creation have changed
• Terminology
Further Changes: Rules for Access Points
• Few abbreviations will be used in RDA– Bible. O.T. – After RDA: Bible. Old Testament
– Bible. O.T. Job – After RDA: Bible. Job
• Rule of three
• Selections
• Lacking collective title
New Terminology
AACR2 termsHeading
Authorized heading
Main Entry
Added Entry
Authority control
Uniform title
RDA termsAccess point
Preferred Access point
Primary Access point
Secondary Access point
Access point control
Preferred title
Name of the work (to include name of creator when applicable)
Mandatory Elements of Description• Title
• Statement of responsibility
• Edition
• Numbering
• Publisher, etc.
• Date of Publication
• Title proper of series
• Numbering within series
• Resource identifier
• Form of carrier
• Extent
• Scale of cartographic content
• Coordinates of cartographic content
RDA & MARC21
• AACR2 and MARC 21 are two different standards designed for two different purposes.
• AACR2 is largely a content and display standard while MARC 21 is an encoding standard.
• RDA will contain guidelines for choosing and recording data to include in bibliographic and authority records.
• MARC 21 is one possible schema for encoding records created using RDA, but it will also be possible to encode records created using RDA in other schemas, such as MODS or Dublin Core.
Examples
• Harry Potter and the philosopher’s stone / J.K. Rowling. WORK
• Language material – English EXPRESSION
• Harry Potter and the philosopher’s stone / J. K. Rowling. London : Bloomsbury, 1999 MANIFESTATION
• Harry Potter and the philosopher’s stone / J. K. Rowling. London : Bloomsbury, 2000. Edition: Abridged ed. MANIFESTATION
• Harry Potter and the philosopher’s stone / J. K. Rowling. London : Church House Publishing, 2007. Edition: Large print ed. MANIFESTATION
• Harry Potter and the philosopher’s stone [Online] MANIFESTATION
Examples
• Sound recording EXPRESSION
• Harry Potter and the philosopher’s stone [Audiocassette] MANIFESTATION
• Harry Potter and the philosopher’s stone [CD audio] MANIFESTATION
• Harry Potter and the philosopher’s stone - the movie WORK
• Videorecording EXPRESSION
• Harry Potter and the philosopher’s stone [DVD] MANIFESTATION
• Harry Potter and the philosopher’s stone [VHS] MANIFESTATION
RDA Structure (Content)
• Part one: Recording attributes of entities
• Part two: Recording relationships between entities
Attributes of Entities
• Sect. 1. Recording attributes of
manifestation and item
• Sect. 2. Recording attributes of work
and expression
• Sect. 3. Recording attributes of person,
family, and corporate body
• Sect. 4. Recording attributes of concept, object, event and place
Relationships between entities
- Internal relationships
• Sect. 5 – Primary relationships between a
work/expressions/manifestations/items
• Sect. 6 – Relationships to persons, families or
corporate bodies
• Sect. 7 – Subject relationships
Relationships between entities
- External relationships• Sect. 8 – Relationships between different works,
expressions, manifestations and items• Sect. 9 – Relationships between different persons,
families, corporate bodies • Sect. 10 –Relationships between concepts,
objects, events and places
Online tool: The RDA Toolkit
• Browse, search, display
• Links within and beyond RDA
• Annotations and bookmarks
• Updates
• Profiles – persistent settings
• Views - e.g. core elements
• Workflows – step-by-step processes
References
• http://www.collectionscanada.gc.ca/jsc/rda.html
• http://presentations.ala.org/images/9/9a/
RDAForumPresentation_Naught.ppt
• http://www.collectionscanada.gc.ca/jsc/docs/
iflasatellite-20080808-gatenby.pdf
• http://www.collectionscanada.gc.ca/jsc/docs/
iflasatellite-20080808-kiorgaard.pdf
References• http://www.collectionscanada.ca/jsc/rda.html
• http://www.collectionscanada.gc.ca/jsc/docs/iflasatellite-20080808-tillett.pdf
• http://www.loc.gov/cds/FRBR.html
• http://www.nla.gov.au/lis/stndrds/grps/acoc/documents/PuttingRDAintocontextPart1FRBR.ppt#256,1,Putting RDA: Resource Description and Access into context 1. FRBR: Functional requirements for bibliographic records