Why preserve-assets

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Why preserve-assets

  1. 1. why preserve digital assets? <ul><li>Andrew Wilson Preservation Services and Projects Manager Arts and Humanities Data Service </li></ul>
  2. 2. Outline <ul><li>what are digital assets </li></ul><ul><li>why should we preserve them </li></ul><ul><li>how should we preserve them </li></ul><ul><li>issues </li></ul>
  3. 3. What are digital assets <ul><li>outputs of business activities </li></ul><ul><ul><li>which have value to you for any reason, or </li></ul></ul><ul><ul><li>which have potential to add value to your activities/business </li></ul></ul><ul><li>intellectual property </li></ul><ul><li>also: knowledge, both extrinsic (written down) and intrinsic (in people’s heads) </li></ul>
  4. 4. Some features of digital assets <ul><li>digital assets in data collections may (will!) be diverse </li></ul><ul><li>often no print analogue </li></ul><ul><li>preservation requires a rich understanding of their use and makeup </li></ul><ul><li>importance of metadata </li></ul>
  5. 5. Why preserve digital assets – use case <ul><li>increasing significance of data re-use </li></ul>
  6. 6. Why preserve digital assets - necessity <ul><li>sheer amount of new information being created digitally each year </li></ul><ul><li>In 2002 3.5-5.6 exabytes </li></ul><ul><ul><li>almost ¾ of new information created was digital </li></ul></ul><ul><ul><li>by way of contrast three times this amount is not recorded (‘information flows’)– 99% telephone calls </li></ul></ul>
  7. 7. Other reasons to preserve digital assets <ul><li>statutory requirements </li></ul><ul><li>protect and exploit institutional investments </li></ul><ul><li>share innovation and information </li></ul><ul><li>aid decision making </li></ul><ul><li>build and preserve “the record” of institutional activity in new formats </li></ul><ul><li>create digital collections contextualized for different audiences and designed for re-use in different ways (e.g text and data mining) </li></ul><ul><li>risks and costs of not retaining digital assets </li></ul>
  8. 8. Digital preservation <ul><li>storage is not preservation; archiving and preservation are not synonomous </li></ul><ul><li>use of Open Archival Information System (OAIS) model: ISO 14721 (2003) </li></ul><ul><li>an immediate need </li></ul><ul><li>general consensus that no single preservation approach will be sufficient </li></ul>
  9. 9. Digital preservation - approaches <ul><li>technology preservation </li></ul><ul><li>technology emulation </li></ul><ul><ul><li>Universal Virtual Computer (UVC) </li></ul></ul><ul><li>data migration </li></ul>
  10. 10. Issues <ul><li>selection </li></ul><ul><li>preservation – in what form and for how long </li></ul><ul><li>access/use (including discovery) </li></ul><ul><li>trust – integrity of data, authentication of content </li></ul><ul><li>costs </li></ul><ul><li>IPR </li></ul>
  11. 11. a final thought <ul><li>“ traditionally, preserving things meant keeping them unchanged; however … if we hold on to digital information without modifications, accessing the information will become increasingly more difficult, if not impossible.” </li></ul><ul><li>Su-Shing Chen, “The Paradox of Preservation”, Computer , March, 2001, pp. 2-6. </li></ul>
  12. 12. Thank You!

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