Implementation scenarios encoding structures and display Rob Walls
Implementation scenarios, encoding structures and display Rob Walls Director Database Services Libraries Australia
Introduction • • • Database Implementation Scenarios Record display - ISBD MARC 21 Dublin Core Bibliographic system changes Libraries Australia implementation
RDA Database Implementation Scenarios • RDA is a content standard • RDA is not a display or encoding standard • RDA is not prescriptive as to the data structures that are used to create, exchange, store or access the metadata
Flat file database structure Bibliographic record Holdings/Item record Name Authority record Name-Title Authority record
Linked Bibliographic and Authority Records Bibliographic record Holdings/Item record Name Authority record Name-Title Authority record
Relational / object-orientated database structure Manifestation Work Access Point Control Record Expression Holdings/Item
RDA Database Implementation Scenarios • New database structures needed to realise the full potential of RDA • Improve efficiency of cataloguing • Improve searching and browsing for users
Record Display • Unlike AACR, RDA doesn’t specify record display format – it will include examples of RDA data in various display formats • This reflects the real world in which display formats are determined by library managers, system designers and system capability • Guidelines on ISBD presentation
ISBD punctuation example ISBD Area / Element Punctuation RDA Element 1. Title and statement of responsibility area 1. 1. Title proper 1. 2. General material designation 2. 3. 1 Title proper [] 3. 2 Media type 6. 10 Content type 1. 3. Parallel title = 2. 3. 2 Parallel title 1. 4. Other title information : 2. 3. 3 Other title information First statement / 2. 4. 1 Statement of responsibility relating to title Subsequent statement ; 2. 4. 1 Statement of responsibility relating to title 1. 5. Statements of responsibility
RDA/MARC Working Group • MARC 21 should be neutral regarding FRBR entities and database design • The proposals can be found at: http: //www. loc. gov/marc/marbi/listp. html#2008 • The discussion papers can be found at: http: //www. loc. gov/marc/marbi/listdp. html#2008
MARC 21 changes • More information about MARC 21 changes early in 2009 • Relatively minor changes need to support the initial implementation of RDA • Mappings of RDA data elements to ISBD, MARC 21 and Dublin Core will be included in RDA
MARC 21 changes • New subfields for 502 (Dissertation note) – $b Degree type – $c Name of granting institution – $d Year degree granted – $o Dissertation identifier – $g Miscellaneous information
MARC 21 possible changes • New field (tag 011) in the Bibliographic and Authority formats to identify which of the FRBR entities is represented by the record • 011 ## $aexpression $2 rda
MARC 21 possible changes • A new field in the Bibliographic and Authority formats for Content Type, Carrier type and Media type – 336 $a. Content $b Media $c. Carrier • Or separate fields for each – 336 Content type – 337 Media type – 338 Carrier type • 336 ## $aperformed music $baudio $caudio disc $2 rda
MARC 21 possible changes • New subfields for 340 (Physical medium) – – – – – $j Generation $k Layout $l Color $m Foliation $n Font size $o Polarity $p Reduction ratio $q Digital file encoding format $r Presentation format for motion picture $2 Source of controlled terms
MARC 21 possible changes • New subfield for 500 (General note) – $i Display text – 500 ## $i. Mount: $a. Mounted on starched linen – 500 ## $i. Source of title proper: $a. Caption title
MARC 21 possible changes • Controlled lists of terms and coded data – Additional codes for types of Non-projected graphics (007/01) – Additional codes format of Music (008/20) – Additional codes for primary support materials for Maps, Globes and Non-projected graphics (007/04) – Additional character position for Text (007/02), Notated Music (007/02), Non-projected graphic (007/06) and Tactile materials (007/10) – Additional character position for Videorecordings (007/09) – Additional code for surround sound in Motion picture (007/08), Videorecording (007/08) and Sound recording (007/04)
MARC 21 possible changes • New fields in the Authority format to record additional information: – – – – – 046 Special coded dates 621 Additional places 622 Address 623 Field of activity 624 Affiliation 625 Occupation 626 Gender 627 Additional information about a family 628 Associated language
MARC 21 possible changes • Possible expansion of the MARC relator list to include additional roles identified in RDA • Support URIs for relator data • Addition of subfield $4 (Relator code) to the Authority format
Dublin Core • DCMI/RDA Task Group • RDA Element Vocabulary – RDA metadata entities (elements, attributes) • E. g. “Title”, “Content type” – RDA value vocabularies (terms) • E. g. “spoken word”, “microform” (media type) • Enable RDA entities to be used in Semantic Web applications/by computers as well as people • DC Application Profile for RDA
Bibliographic system changes • Implement support for new/changed MARC 21 data elements: – Cataloguing interface – Record displays – Index definitions
OCLC World. Cat • Ex-officio member of ALA Committee on Cataloguing • JSC RDA Examples Groups • RDA/MARC Working Group • ALA RDA Implementation Task Force
Libraries Australia • Will support the creation and exchange of RDA data from the agreed Australian implementation date • Continued support for exchange of AACR 2 data • Cataloguing policy will allow AACR records to be upgraded to RDA
Libraries Australia • Global change programs to convert AACR records to RDA • Provide users with as much notice as possible of the changes to the data format and cataloguing policy • Changes will be reflected in training courses and system documentation • We aim to provide a training system that supports RDA well in advance of the formal Australian RDA implementation date
Questions?
Links • RDA Database Implementation scenarios http: //www. collectionscanada. gc. ca/jsc/docs/5 editor 2. pdf • Encoding RDA data http: //www. collectionscanada. gc. ca/jsc/docs/5 editor 2. pdf • RDA, FRBR/FRAD, and Implementation Scenarios http: //www. collectionscanada. gc. ca/jsc/docs/5 editor 4. pdf • MARC Development web site http: //www. loc. gov/marc/development. html • DCMI/RDA Task Group wiki http: //dublincore. org/dcmirdataskgroup
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