OCLC Digital Archive - Suzanne Butte (2002)
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Transcript of OCLC Digital Archive - Suzanne Butte (2002)
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OCLC Digital Archive
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Digital Archive: Initial Release Digital Archive: Initial Release • Implement digital archive
infrastructure
– OAIS
• Develop best-practices– Preservation metadata
• Develop tools– Workflows
• Receive input from users / practitioners
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Digital Archive ReleasesDigital Archive Releases
Initial releaseInitial releaseInitial releaseInitial release
Batch releaseBatch releaseBatch releaseBatch release
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Initial: Web Document Digital ArchiveInitial: Web Document Digital Archive
• Harvest Web-based documents
• Create preservation metadata
– CORC interface
• Ingest and Disseminate
• Manage archived objects
– Administration module
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HarvestHarvest• Web documents
– Text and still images
– HTML, PDF, JPEG, GIF, BMP, TIFF, ASCII
• Directed at URL
– Depth
– Harvest strategy
• Preview, modify document, review
• Fixity
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Create Preservation MetadataCreate Preservation Metadata• Not bibliographic metadata
– Some fields map from resource catalog record
• 25 possible elements
– Based on OAIS information model
– Modified by participants
• Hand and system input
• Evolving
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IngestIngest
• Set service level
– Local, store, preserve
• Takes in object and preservation metadata
• System extracts structural metadata
– Object composition
– Object size
– File relationships
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DisseminateDisseminate
• DIP (dissemination information package)
– Objects and metadata
– Via FTP
• View
– Via standard browsers
– PURL (OpenURL syntax)
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Administration ModuleAdministration Module
• Owners determine access
– Create authorization groups
– Create content groups
– Create rights statements
• Can assign public access
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• URL directed• Set parameters• Pre- & review
Harvest
local digital repository
OCLC Digital Archive
InternetInternet
CORC
•Bib metadata
•DA metadata
FirstSearch (or other catalog)•Search
•View
•Authenticate
• Ingest/validate
•Dissemination
• Store & preserve
•Administer
OCLC Digital Archive
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Digital Archive Timeline: Initial ReleaseDigital Archive Timeline: Initial Release
• Limited participation phase
– Summer 2002
– Need additional participants
• http://www.oclc.org/digitalpreservation/archiving/wdda.shtm
• General release
– Late 2002
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Next phasesNext phases• Preservation strategies
– Migration, on-the-fly conversion & emulation
• Batch ingest
• PURL re-direct
• Digital rights management
• Document authenticity issues
• More file types
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Selected BibliographySelected Bibliography• Lavoie, Brian. “Meeting the
Challenges of Digital Preservation: the OAIS Reference Model” OCLC Newsletter, January/February, 2000. pg. 26-30. http://www2.oclc.org/oclc/pdf/news243.pdf
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Selected Bibliography, continued Selected Bibliography, continued
• Lavoie, Brian. “Metadata for Digital Preservation.” OCLC Newsletter, September/October 2001. p. 33-36. http://www2.oclc.org/oclc/pdf/news253.pdf
• OCLC/RLG Preservation Metadata Working Group. White Papers http://www.oclc.org/research/pmwg/
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QuestionsQuestions
• Pam Kircher, OCLC Product Manager, Digital Archive– 800-848-5878, ext. 6459
• Suzanne Butte, OCLC Library Services Consultant– 800-848-5878, ext. 5130
• http://www.oclc.org/digitalpreservation