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MARC 21- 2709. ONIX Books. MARC XML. MODS. DC XML. OAI-DC XML. OAI-PMH XML. DC-Qualified. ONIX Serials. Beyond the Record : OCLC & the Future of MARC. MARC 21- 2709. CCS Forum ALA - Chicago. CDF. OCLC MARC. July 11, 2009. OCLC CDF. Ted Fons - PowerPoint PPT Presentation
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Beyond the Record : OCLC & the Future of MARC
Beyond the Record : OCLC & the Future of MARC
Ted FonsDirector WorldCat Global
Metadata Network
CCS ForumALA - Chicago
July 11, 2009
CDF
MARC 21-2709
OCLC MARC
OCLC CDF
MARC XML
DC XML
DC-Qualified
MODS
ONIX Books
MARC 21-2709
DC XML
OAI-DC XML
OAI-PMH XML
ONIX Serials
MARC XML
MODS
ONIX Books
DC-Qualified
Beyond the Record: OCLC and the Future of MARCBeyond the Record: OCLC and the Future of MARC
• The OCLC Context
• OCLC’s Role in RDA
• Beyond MARC
• Beyond the Record
The OCLC Context
The OCLC ContextThe OCLC Context
• A membership organization
• Diverse membership
69,826 libraries in 112 countries
1,3551,355
55,28455,284
882882
5,6395,6394,2534,253
1,0151,015
320320
The OCLC CooperativeThe OCLC Cooperative
1,0801,080
OCLC’s Role with RDA
OCLC & RDAOCLC & RDA
• Committee Contribution:
• ex-officio membership in the ALA Committee on Cataloging: Description and Access
• MARC Advisory Committee
• Staff Participation:
• Joint Steering Committee's two RDA Examples Groups
• RDA/MARC Working Group
• Representation on: ALA ALCTS RDA Implementation Task Force
• Various program sessions
OCLC & RDAOCLC & RDA
• OCLC Internal Activities:
• Discussions with the three U.S. national libraries to plan for the testing/evaluation period (late 2009)
• Planning for MARC21 format changes to support the testing/evaluation period
• OCLC Contract Services to staff have been selected to participate in the testing/evaluation period.
Beyond MARC21With thanks to Jean Godby of OCLC Research
The Crosswalk Web Service at OCLCThe Crosswalk Web Service at OCLC
•Enables OCLC to translate from one metadata format to another.
• A “metadata format” is a triple that consists of a metadata schema, a structural encoding, and a character encoding.
• Supported standards are bibliographic, but the software can handle other types of data.
•Can be called from any product or service that processes metadata.
•A version with a slightly different interface resides on the OCLC Enterprise Bus.
CDF
MARC 21-2709
OCLC MARC
OCLC CDF
MARC XML
DC XML
DC-Qualified
MODS
ONIX Books
MARC 21-2709
DC XML
OAI-DC XML
OAI-PMH XML
ONIX Serials
MARC XML
MODS
ONIX Books
DC-Qualified
Inputs and outputsInputs and outputs
MARC input
522 $a northwest
…
<datafield tag=‘522”> <subfield code=‘a’>northwest</subfield></datafield>
…
ISO 2709
MARC XML
or
Convert to input structure <record> <header> <schema name=‘marc21’ namespace=‘uri:”marc:21’/> </header> <field name=‘522’> <field name=‘a’> <value>northwest</value> </field> </field></record>
Translate to DC Terms
<record> <header> <schema name=‘DC-Terms’ namespace=‘uri:DC-Terms’/> </header> <field name=‘spatial’> <value>northwest</value> </field></record>Convert to output structure
<?xml version=“1.0” encoding=“UTF-8”?><qualifieddc xmlns dcterms=‘purl.org;dc/terms’ > <dctermsset> <dcterms:spatial> northwest </dcterms:spatial> </dctermsset></qualifieddc>
DC Terms output
Data flow for a single translationExample: MARC21 to Dublin Core via CDF
In sum…In sum…
•The Crosswalk Web service is engineered for reusability.
•It is abstract enough to handle any kind of metadata markup.
•It keeps a close connection between human-generated translation logic and executable code.
•It is flexible enough to handle many use cases.
Adoptions Adoptions
The Crosswalk Web Service has been incorporated into:
• Connexion Client 2.0
• ContentDM Ingest
• Data Load Enhancement
• eSerials, eSweep
• NetLibrary
• Next Generation Cataloging
Adoption is being studied for components of:
• Digital Collection Gateway
• WorldCat Cataloging Partners NCIP (NISO Circulation Interchange Protocol)
It is being used in research projects:
• Art and natural history museum metadata (with RLG partners)
• ISO 8459 bibliographic message exchange (with Janifer Gatenby)
Future prioritiesFuture priorities
1. Develop a user interface that accepts translation logic and automatically generates Seel scripts.
2. Streamline and enhance some of the Seel language features.
3. Investigate ways to interoperate with the crosswalking software developed at OCLC Leiden.
4. Develop translations for non-bibliographic metadata.
For more informationFor more information
1. Metadata translation at OCLC, pre-CWS
• A Survey of Metadata Translation Activity at OCLC
2. CWS documentation
• The Crosswalk Web Service Users’ Guide
• The Seel tutorial: Introduction; Seel in a Nutshell
3. 4. Research reports
• Encoding Application Profiles in a Computational Model of the Crosswalk
• Toward element-level interoperability in bibliographic metadata
• A Repository of Metadata Crosswalks
• Two Paths to Interoperable Metadata
Beyond the RecordWith thanks to Diane Vizine-Goetz of OCLC Research
WorldCat IdentitiesWorldCat Identities
FRBR Entity Levels RevisitedFRBR Entity Levels Revisited
The movie
Original Version
Based on a graphic in Tillett, Barbara "AACR2's Strategic Plan and IFLA Work towards an International Cataloguing Code“ (2002)
OCLC FRBR Work-set AlgorithmOCLC FRBR Work-set Algorithm
Provides a FRBR-based view of the data
1.Records clustered into works using author and title fields from bibliographic and authority records
2. Author names and titles normalized to construct a work key
3. All records with the same key are grouped together in a work set or cluster
Share data elements across a FRBR Work SetShare data elements across a FRBR Work Set
Work pages betaWork pages beta
Provides a rich context from cataloging data
Beyond the Record : OCLC & the Future of MARC
Beyond the Record : OCLC & the Future of MARC
Ted FonsDirector WorldCat Global
Metadata [email protected]
CCS ForumALA - Chicago
July 11, 2009
CDF
MARC 21-2709
OCLC MARC
OCLC CDF
MARC XML
DC XML
DC-Qualified
MODS
ONIX Books
MARC 21-2709
DC XML
OAI-DC XML
OAI-PMH XML
ONIX Serials
MARC XML
MODS
ONIX Books
DC-Qualified
