Migration on Request, a Practical Technique for Preservation

  • Phil Mellor
  • Paul Wheatley
  • Derek Sergeant
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 2458)

Abstract

Maintaining a digital object in a usable state over time is a crucial aspect of digital preservation. Existing methods of preserving have many drawbacks. This paper describes advanced techniques of data migration which can be used to support preservation more accurately and cost effectively.

To ensure that preserved works can be rendered on current computer systems over time, “traditional migration” has been used to convert data into current formats. As the new format becomes obsolete another conversion is performed, etcetera. Traditional migration has many inherent problems as errors during transformation propagate throughout future transformations.

CAMiLEON’s software longevity principles can be applied to a migration strategy, offering improvements over traditional migration. This new approach is named “Migration on Request.” Migration on Request shifts the burden of preservation onto a single tool, which is maintained over time. Always returning to the original format enables potential errors to be significantly reduced.

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References

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    Wheatley, P: Migration— a CAMiLEON discussion paper Ariadne 29 (2001) http://www.ariadne.ac.uk/issue29/camileon/
  2. 5.
    Holdsworth, D and Sergeant, D M: A blueprint for Representation Information in the OAIS Model (1999) http://www.personal.leeds.ac.uk/?ecldh/cedars/ieee00.html
  3. 6.
    Holdsworth, D and Wheatley, P: Emulation, Preservation and Abstraction. RLG Dignews 5,4 http://www.rlg.org/preserv/diginews/diginews5-4.html#feature2
  4. 10.
    World Wide Web Consortium: Scalable Vector Graphics (SVG) 1.0 Specification September (2001) http://www.w3.org/TR/SVG/
  5. 11.
    Hedstrom, M and Lee, C: Digital Objects: Definitions, Applications, Implications. Proc 3rd DLM Forum, Barcelona, May (2002) (forthcoming)Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2002

Authors and Affiliations

  • Phil Mellor
    • 1
  • Paul Wheatley
    • 1
  • Derek Sergeant
    • 1
  1. 1.CAMiLEON Project, Edward Boyle LibraryThe University of LeedsLeedsUK

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