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OAIS: From Requirements to Reality at OCLC

FLICC / CENDI Symposium, Dec. 11 2001. OAIS: From Requirements to Reality at OCLC. Pam Kircher Product Manager, Digital Archive OCLC Digital & Preservation Resources . OCLC and FirstSearch are registered trademarks of OCLC Online Computer Library Center, Incorporated .

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OAIS: From Requirements to Reality at OCLC

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  1. FLICC / CENDI Symposium, Dec. 11 2001 OAIS: From Requirements to Reality at OCLC Pam Kircher Product Manager, Digital Archive OCLC Digital & Preservation Resources OCLC and FirstSearch are registered trademarks of OCLC Online Computer Library Center, Incorporated CORC is a trademark of OCLC Online Computer Library Center, Incorporated

  2. OCLC Digital ArchiveLong-term retention and access • Interoperable • OAIS • Preservation Metadata • Choice of service levels • Integrate with current workflows • CORC-based tools • Administration module

  3. OAIS to OCLC Digital Archive Data Management Service Levels Rights Management Capture Local Archive Ingest Digital Archive Disseminate Web Browser CORC System Planning Stats & Reporting Preservation Planning Administration

  4. OCLC Digital Archive Tier Diagram

  5. All Digital Archive Service Levels • OCLC admin staff: • Performance and media management • Periodic QA for functionality & fixity • Offsite backup • Owner admin staff: • Movement of objects from one service level to another • Content management

  6. Digital Archive Service Levels

  7. Implementation Drivers at OCLC • Object characteristics • Born digital • Web documents • Mostly public-domain • User characteristics • Didn’t create the object • Want to integrate workflows • Use current staff • Supporting tools • CORC • Content and Autho Groups

  8. Web Document Digital Archive Pilot • Implement digital archive • Manage web-based documents • Capture • Long-term retention & access • Develop best-practices • Preservation metadata • Workflows • Direct input from users

  9. Browser or OPAC • Search WC • View Objects • Web Crawl • Crawl profile • Capture • Manual review FirstSearch • Authentication • Ingest/validate • Admin interface • Dissemination • Storage • Retrieval Harvester • Bib metadata • Bib metadata • Pres metadata CORC CORC Digital Archive … other repositories OCLC Web Document Digital Archive INTERNET

  10. OCLC Digital Archive Record • Based on OAIS information model • 28 elements plus sub-elements • Descriptive, preservation, representation • Still images and text • Implemented in XML • Evolving

  11. Capture • User directed harvesting interface • Preview • Review • Virus checking and checksum Ingest • Representation information • Structure of web document • Packaging information

  12. Dissemination • Objects and metadata (DIP) via FTP • View • Via standard browsers • PURL/URL syntax is OpenURL • Administrator sets access rights • Administrator creates collections

  13. Next phases • Batch ingest • Migration, on-the-fly conversion & emulation • PURL re-direct • Capture improvements • Digital rights management • Document authenticity issues • More file types

  14. Questions?www.oclc.orgpam_kircher@oclc.org

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