Digital Preservation

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• Digital Preservation
• at the
• Koninklijke Bibliotheek
• Hilde van Wijngaarden
• Digital Preservation Officer
• Koninklijke Bibliotheek/ National Library of the
  Netherlands
• www.kb.nl/e-depot

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Digital Preservation

• Digital preservation activities
• Preservation functionality for the e-Depot
• Preservation Manager
• Preservation Processor
• UVC for Jpeg
• Research on Permanent Access Technology
• Emulation
• Migration
• (Inter)national projects
• DARE
• PREMIS
• ICABS

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Digital Preservation

• LTP studies 2002
• KB/IBM Projectgroup to study LTP issues
• Six studies presented December 2002
• Memorandum of Understanding with IBM
• Two projects for 2003
• Preservation Manager
• Operational UVC
• Including new idea Preservation Processor
• Projects run until March 2004

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Preservation Subsystem
Permanent Access Toolbox
Preservation Processor
Preservation Manager
Delivery Capture
Archival Storage
Administration
Monitoring Logging
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Digital Preservation

• The Preservation Manager
• Stores information on file formats
• Control mechanism for changing technologies
• Possible interaction with international format
  registries
• Preservation Layer Model (PLM)
• Layers in hardware/software
• View Paths
• Specific hardware/software requirements (the
  instances of the layers)

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Digital Preservation
Autonomous Digital Item

• The Data Format identifies the structure and
  meaning of a bit-stream, like a .PDF file

Data Format

• The structure and meaning of the bit-stream are
  defined within the application logic of a
  specific Viewer Application

Viewer Application

• The Operating System contains the functionalities
  that all viewer applications need like access to
  a printer or scanner, and fundamental
  requirements like file structure

Operating System

• Reference Platform

• The Reference Platform specifies how the bits and
  bytes are transformed to a physical
  representation like for example on a screen

Requested Information Object
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Digital Preservation
Legal Deposit of Digital Materials

Erik Oltmans
So Windows95 gets obsolete..
And Acrobat for AIX is no longer supported..
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Digital Preservation

• The Preservation Manager
• Model PLMs, layers and attributes
• View Paths based on specific PLM
• Every file format can be connected to several
  View Paths
• Technology scans provide needed information

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Digital Preservation
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Digital Preservation
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Digital Preservation
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Digital Preservation
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Digital Preservation

• Permanent Access

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Digital Preservation

• Planning Permanent Access Strategies
• What do you want to preserve?
• Why do you want to preserve?
• What do you want to render in the future?

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Digital Preservation

• Possible strategies for permanent access
• Emulation
• Emulation Virtual Machine (RAND)
• Universal Virtual Computer (IBM)
• Migration on Request (Leeds)
• Migration (format conversion)
• Migration of wordprocessing documents (Testbed)
• Migration to other formats
• Conversion to XML (Normalisation)

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Digital Preservation

• KB Choice for keeping the original
• Emulation
• Never operationalised in a digital archiving
  environment
• Project will start this year, in co-operation
  with the Dutch National Archives
• Universal Virtual Computer
• First operational UVC for JPEG

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Digital Preservation

• Universal Virtual Computer (UVC)
• Approach developed by Raymond Lorie (IBM)
• A general intermediate platform
• Simple enough to be re-implemented on any
  available platform in the future
• A Decoder runs on the UVC and translates an
  objects into a Logical Data View (XML-like)
• A schema explains the Logical Data View to enable
  viewing in the future

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Digital Preservation

• An operational UVC for Jpeg
• UVC for pdf too complicated
• To review this strategy we need an operational
  tool
• All the components for a working solution needed
• The safety-net solution UVC for images
• Convert pdf to images
• Choice for Jpeg

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Digital Preservation

• The Preservation Processor
• Module for selection and processing of stored
  digital objects
• First specific for UVC for Jpeg
• Select pdf-files
• Convert to Jpeg
• Re-ingest converted AIP
• Plans for generic version
• Selection objects and/or file formats in e-Depot
• Processing copying to new format if required
• Support Permanent Access Strategy
• Interface with Ingest and Access

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Digital Preservation

• (Inter)national projects
• DARE (Digital Academic Repositories)
• A joint initiative of the Dutch University
  Libraries to develop advanced services for the
  digital recording, accessing, storage and
  distribution of the Dutch academic output.
• PREMIS
• International working group on Implementation
  strategies for preservation Metadata (OCLC/RLG)
• ICABS
• IFLA-CDNL Alliance for Bibliographic
  Standards, Research on best practices in
  digital archiving and ongoing developments
  concerning permanent access

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Digital Preservation

• Any questions?