Editing Preservation Support (section)

== History Module ==

EPrints v3 introduces a new 'history' function that documents all changes made to records, from the point of deposit (when the record was first created) onwards. Currently this feature is used to provide an audit trail for editorial purposes, but as digital preservation services are developed they will need to modify the content of repositories, e.g. to migrate file formats, and such actions must be recorded to inform later preservation decisions. To keep track of what has happened to a record the repository will need to store both the object itself and all actions that have been performed on it over time.

Figure 4 visualises changes that have been made to an object. In this instance a new 'Document' has been added to the record, with the consequent addition of new files.

[[Image:eprints_history.png]]

'''Figure 4. History module shows the addition of a new document in the record for an object'''