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OCLC Online Computer Library Center
Registry of Digital Masters
A joint project of theDigital Library Federation and OCLC
Taylor Surface, OCLCALA Annual ChicagoJune 25, 2005
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OCLC Online Computer Library Center
Registry of Digital Masters
Coordination
Trust
Discovery
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OCLC Online Computer Library Center
OCLC’s digital “life cycle” …
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OCLC Online Computer Library Center
Typical Digitization Workflow
Coordination?
Trust?
Discovery?
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OCLC Online Computer Library Center
… a note about WorldCat
• Collaboratively built• 55+ million records• 900 million holdings• MARC21 / AACR2
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OCLC Online Computer Library Center
COORDINATION
INTENT
AVAILABILTY
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OCLC Online Computer Library Center
TRUST – “Use copy”
Persistent URI
Terms & conditions for access
Special instructions
Technical information
Non-standard application
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OCLC Online Computer Library Center
TRUST – “Master copy”
Creation standards
Data format
Repository practices
Persistent ID
Terms & conditions for access
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OCLC Online Computer Library Center
DISCOVERY
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OCLC Online Computer Library Center
DLF Working Group
Harvard
Carnegie-Mellon
Columbia University
Cornell University
University of Michigan
University of Virginia
Library of Congress
RLG
OCLC
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OCLC Online Computer Library Center
Implementation in OCLC
Record Creation Guidelines
Connexion cataloging service
Web
Workstation
Batch input
Seeding the registry
Broader participation
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OCLC Online Computer Library Center
A practical example …
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OCLC Online Computer Library Center
Digitization Workflow
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OCLC Online Computer Library Center
OCLC Digital Archive… for digital masters
Co-developed with …
OCLC Preservation Services
Various digitization projects
Preservation master files
Managed storage & preservation
Recovery
Re-use
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OCLC Online Computer Library Center
OCLC Digital Archive
On-site and offsite backups
Ongoing virus and fixity checks
Migration of media on which bits are stored
Disaster recovery
Managed Storage & PreservationManaged Storage & Preservation
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OCLC Online Computer Library Center
Digitization Workflow
mastersDigital Archive
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OCLC Online Computer Library Center
Back to the Registry … Future!
Public view
OAI harvestability
Holdings format implementation
You?
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OCLC Online Computer Library Center
Registry of Digital Masters
Coordination
Trust
Discovery
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OCLC Online Computer Library Center
Registry of Digital Masters
Background: www.diglib.org/collections/reg/reg.htm
Record Creation Guidelines: www.diglib.org/collections/reg/DigRegGuide.htm