|Extending Greenstone for Institutional Repositories : David Bainbridge, Wendy Osborn, Ian H. Witten, David M. Nichols|
We believe that Greenstone provides the following advantages for institutional repositories: trivial to install; configurable workflow that works with any metadata set and document type; variable number of steps; collection based with support for customization; incremental building that with full text indexing across a wide range of formats include HTML, PDF, Word, PPT, email, as well as automatic metadata extraction; and language independence.
All systems we have mentioned are open source, which means that anyone wishing to evaluate them can do so freely. In practice, however, considerable effort may be needed to do a trial—installation alone is often a major stumbling block . (On more than one occasion we have met library staff who have spent months trying to get a trial installation up and running.) This would be easier if developers provided a sandbox for others to try their system out (one exists for GNU Eprints). Ours is at www.greenstone.org/ir-sandbox/