Page History

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• Different objects (items) related in descriptive metadata
• Different (semantic) revisions of a single item
• Within a single revision, some way of specifying that representation Y was derived from representation X
  In terms of IDs, which would item revisions get:
• 'resolvable' persistent IDs (a la Handles). e.g. we could give versions a Handle like:

  Panel
  `hdl:1721.1/1234/3456/version/4`

  but since these look like Handles we'd also need to make these actual Handles, i.e. resolvable, meaning lots more Handles to manage.
• essentially non-resolvable but persistent IDs (e.g. info: UIs)
• something like ULs which don't have quite the same persistence possibilities as Handles (e.g. http://dspace.foo.com/dspace/version/1524.4/1234/version/4^{Image Removed})

How would these versions be presented to external interfaces like OAI-PMH? Likely to vary based on the interface; in most cases, most recent is appropriate.

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