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For the "My Lists" feature what steps are actually involved retrieving an altered/deleted listing like "[_] Record b2491348 is not available 03-12-2013" by that bibliographic reference code from the 7 month system backup? Perhaps the backup is compressed and searching a compressed file is a barrier for what could otherwise be relatively straight forward with something like grep http://en.wikipedia.org/wiki/Grep In the future when we have real computers it'll be trivial to get information from a backup with the reference code. On Tue, Oct 15, 2013 at 12:32 PM, McDonald, Stephen < [log in to unmask]> wrote: > > > > a) Forensics studies deal with how to retrieve "deleted" "unarchived" > data. So called "deleted" data is actually available. > > Computer forensics cannot always get the data back. Television crime > shows greatly exaggerate the capabilities of computer forensics. It > depends on what format the data was in, how the data was deleted, and what > has happened on the computer since it was deleted. Even in the cases where > it is possible, it requires taking the system offline (making it > unavailable for other people to use), requires specialized software, can > take days of work, and often can retrieve only part of the data. This is > not feasible in a working database like your library network. > > > b) Setup the system not to delete records belonging to users. Let users > keep their information saved for followup. Or at the very least notify > users beforehand. > > Millennium cannot do that. The only internal mechanism in Millennium to > prevent records from being deleted is by controlling who can perform > deletions. There is no mechanism in Millennium to notify either the person > deleting or the owner of a review file that a record being deleted is in a > review file. It is not feasible for someone deleting records to manually > check every review file to see whether a record is in one of them. > > The only way to control deletions is by careful training, limiting who can > delete data, and establishing policies on when and how data are deleted. > This is something between you and the consortium, but it sounds like > Minuteman has established policies and is following them. > Steve McDonald > [log in to unmask] >