290 likes | 695 Views
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.
E N D
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 Name Authority record Name-Title Authority record Holdings/Item record
Linked Bibliographic and Authority Records Bibliographic record Name Authority record Name-Title Authority record Holdings/Item 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
RDA/MARC Working Group • MARC21 should be neutral regarding FRBR entities and database design • The proposals can be found at: http://www.loc.gov/marc/marbi/list-p.html#2008 • The discussion papers can be found at: http://www.loc.gov/marc/marbi/list-dp.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, MARC21 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 $2rda
MARC 21 possible changes • A new field in the Bibliographic and Authority formats for Content Type, Carrier type and Media type • 336 $aContent $b Media $cCarrier • Or separate fields for each • 336 Content type • 337 Media type • 338 Carrier type • 336 ## $aperformed music $baudio $caudio disc $2rda
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 ## $iMount:$aMounted on starched linen • 500 ## $iSource of title proper:$aCaption title
MARC 21 possible changes • Controlled lists of terms and coded data • Additional codes for types of Non-projected graphics (007/01) • Additional codes for 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 WorldCat • 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 AACR2 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
Links • RDA Database Implementation scenarios http://www.collectionscanada.gc.ca/jsc/docs/5editor2.pdf • Encoding RDA data http://www.collectionscanada.gc.ca/jsc/docs/5editor2.pdf • RDA, FRBR/FRAD, and Implementation Scenarios http://www.collectionscanada.gc.ca/jsc/docs/5editor4.pdf • MARC Development web site http://www.loc.gov/marc/development.html • DCMI/RDA Task Group wiki http://dublincore.org/dcmirdataskgroup