What Is EPrints
Let's get away from the OAIS definitions and repository talk. Let's think about EPrints as an abstract information system. WHat features does it provide, so what classes of problem can it be used for?
Acquisition
Perhaps primarily, EPrints is a tool for getting information from people. It has a very good interface (though we say so ourselves) for helping people enter quite complex information in as accurate and complete a way as possible, and it is very flexible about what kind of information can be entered and how.
You can use it for anything you want to capture from people: coursework handins, conference submissions, blog entries, summer holiday photo snaps, MP3 or video collections, questionnaires, workshop registration or credit card details. Or there's the more obvious repository candidates: scientific data, published documents, student portfolios, fine art exhibitions.
Review
EPrints provides an editorial workflow for items that have been entered (see acquisition, above) to be checked, reviewed, commented on, modified, returned to the original depositor, moved to another reviewer, or placed into a final, published state. This facilitates simple peer review, editorial oversight or management authorisation for publishing, commentary or rights checking.
Dissemination and Publishing
EPrints allows you to create and manage a large web site, with skins, a variety of navigation structures and search options, multilingual intefaces and adaptable content. The licensing and visibility of each item of content is controllable. This is great for all aspects of dissemination and publishing in the academic world. (We differentiate between the two because the items in the repository may have been published by a third party.)
As well as disseminating individual items, EPrints can deal with a set or collection of material. For example, it is an ideal place to put the proceedings from a conference or workshop, instead of creating a bare website from scratch. You can either set up a whole repository if it is a big conference (like Open Repositories 2008) or just use a single collection if it is a small workshop (for example Web Evolve 2008).
Classification and Tagging
EPrints allows items to be tagged with controlled metadata from restricted vocabularies or taxonomies or with uncontrolled keywords or informal folksonomies. Its autocompletion facilities allow users to be prompted by commonly used folk terms to describe an item, and its keyword view styles allow tag clouds to be displayed (see example).