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Digital Preservation with OCLC

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Time marches on ... OCLC Online Computer Library Center. Daily operations. Users request reprints ... Limited staff time for these functions. OCLC Online ... – PowerPoint PPT presentation

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Title: Digital Preservation with OCLC


1
Digital Preservation with OCLC
  • Digitization Standards Issues Updates
  • Taylor Surface, OCLC

2
Your digitization project
  • Grant funding, limited time
  • Volumes of files data
  • Grad students, volunteers, staff
  • TIFF, JPEG, GIF, BMP
  • Where to put those master files?
  • Web layout
  • Online!

3
Time marches on
4
Daily operations
  • Users request reprints
  • Servers are replaced
  • Collection is expanded
  • An image file is corrupted
  • Software is upgraded
  • A hard disk fails
  • what happened to those master files?

5
Whats needed here?
  • Track master file location
  • Associate master with access copy
  • Manage master file storage
  • Prepare for future uses
  • ? Limited staff time for these functions

6
A practical example
  • Registry of Digital Masters
  • Digital Archive for Digital Masters

7
Registry of Digital Masters
  • Coordination
  • Trust
  • Discovery

8
COORDINATION
9
TRUST Use copy
  • Persistent URI
  • Terms conditions for access
  • Special instructions
  • Technical information
  • Non-standard application

10
TRUST Master copy
  • Creation standards
  • Data format
  • Repository practices
  • Persistent ID
  • Terms conditions for access

11
DISCOVERY
12
Digitization Workflow
13
OCLC Digital Archive for digital masters
  • Co-developed with
  • OCLC Preservation Services
  • Various digitization projects
  • Preservation master files
  • Managed storage preservation
  • Recovery
  • Re-use

14
OCLC Digital Archive
Managed Storage Preservation
  • On-site and offsite backups
  • Ongoing virus and fixity checks
  • Migration of media on which bits are stored
  • Disaster recovery

15
Digitization Workflow
16
Villanova University
  • The Irish Press Newspaper
  • Dedicated to Irish Nationalism
  • 1918 -1922
  • Preserved
  • Filmed
  • Digitized
  • Archived

17
DISCOVERY
18
Know where the costs are!
  • The usual comparisons
  • CD 0.60 per Gigabyte
  • DLT tape 15 per Gigabyte
  • PC hard-drive 6 per Gigabyte (and you get a PC
    too!)
  • The hidden issues
  • Operational costs?
  • Associated systems?
  • Accessible in one, two, ten years?

19
More information
  • Registry of Digital Masters
  • www.diglib.org/collections/reg/reg.htm
  • Digital Archive
  • www.oclc.org/digitalarchive
  • Me
  • taylor_surface_at_oclc.org

20
Digital Preservation with OCLC
  • Digitization Standards Issues Updates
  • Taylor_surface_at_oclc.org
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