Preservation policies defined.
- Items will be retained indefinitely.
- The repository will try to ensure continued readability and accessibility.
- Items will be migrated to new file formats where necessary.
- It may not be possible to guarantee the readability of some unusual file formats.
- The repository regularly backs up its files according to current best practice.
- The original bit stream is retained for all items, in addition to any upgraded formats.
- Items may be removed at the request of the author/copyright holder.
- Acceptable reasons for withdrawal include:
- Proven copyright violation or plagiarism
- Legal requirements and proven violations
- National Security
- Falsified research
- Withdrawn items are not deleted per se, but are removed from public view.
- Withdrawn items' identifiers/URLs are retained indefinitely.
- URLs will continue to point to 'tombstone' citations, to avoid broken links and to retain item histories, with:
- a link to a replacement version, where available
- a note explaining the reasons for withdrawal
- Errata and corrigenda lists may be included with the original record if required.
- If necessary, an updated version may be deposited.
- The earlier version may be withdrawn from public view.
- There will be links between earlier and later versions, with the most recent version clearly identified.
- Items are allocated a checksum to facilitate the detection of alterations.
- In the event of the repository being closed down, the database will be transferred to another appropriate archive.
This article was published on Sep 1, 2010