OCLC Digital Archive: Creating Long Term Access to Digital Masters

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OCLC Digital Archive Creating Long Term Access
to Digital Masters

• Roberta Gebhardt, Montana Historical Society
  Research Center
• Sarah McHugh, Montana State Library
• Fall Workshop, 2010

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Montanas Statewide Tools

• Montana Memory Project Public access to digital
  collections
• Montana Digital Archive Long term
  access/preservation of masters

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Defining Long Term Access

• Digital preservation as long term access
• Master files
• When to think about preservation of the master
  file in a digitization project
• Planning a digitization project that includes both

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Questions to Ask

• When will you know to take preservation actions?
• What is in your collection?
• How will you store maintain digital masters for
  5, 10, 50 years?
• Where have you put them?

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Digital Archive provides

• Systems management
• Physical security
• Data security
• Data backups
• Disaster recovery
• ISO 9001 Certification

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Digital Archive performs

• Manifest verification
• Virus check
• Fixity check (digital fingerprinting)
• Format verification
• Reports on
• Storage use growth
• File types
• Accesses disseminations

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Accessing the Digital Archive as an MMP
contributor

• Montana Memory Project Digital Archive Profile
• Collaborating libraries 17 academic, public,
  government
• Number of collections 47
• Photographs / Brand Registers / Maps / Diaries /
  Yearbooks
• Repository software CONTENTdm (hosted by OCLC)
• Archive submission frequency Daily / Project
• Current number of files in DA 46,622
• Total storage 1 terabyte
• User since April 2008

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Simple, straightforward workflows

• Digital Archive fits in
• Local digital asset management systems
• CONTENTdm collection building
• WorldCat cataloging
• Web Harvester

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Local content management system workflow
Files from your local computer or network
WorldCat
Metadata anddisplay image
Digital Archive
Digital Asset Mgt. System
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Building your digital collectionswith CONTENTdm
- workflow
Dublin Core metadata and files from local
computer or network
WorldCat
CONTENTdm
(1) Project client and (2) Web-based Add
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CONTENTdm workflow
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DA Uploader
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DA Uploader
After successful upload, you will receive an
e-mail when the Digital Archive completes Ingest
processing, usually within 24 hours, depending on
the size of your archival volume and the current
processing load of the Archive.
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Building your digital collections with Connexion
digital import - workflow
Files from your local computer or network
WorldCat
Connexion digital import
CONTENTdm
Metadata anddisplay image
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Getting your master files out of the Digital
Archive (dissemination)

• Single file dissemination/web browser delivery
• Bulk dissemination

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Single File Dissemination
Free. One file at a time. Only the image is
returned.
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Bulk Dissemination
Fee associated with this action. Removes files
and metadata from the Digital Archive.
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Reports

• Storage use and growth
• File Types
• Access and disseminations

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Report examples
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Questions?

• rgebhardt_at_mt.gov
• samchugh_at_mt.gov
• http//msl.mt.gov/For_Librarians/For_All_Librarian
  s/Digitization/Montana_Memory_Project/default.asp
• Thank you to Taylor Surface, OCLC Digital
  Collections Services, for the use of his slides