At first a small overview is given about the disposition of document ser-
vers in the scientific publication process. Then, institutional repositories
are introduced by their key features and the benefits of establishing them
as a central repository in the university context.
A specific solution was chosen on behalf of the requirements of the Uni-
versity Library of Kassel, Germany. The software Dspace was chosen
but needs to be extended by
• use of the urn:nbn scheme as persisten identifier.
DSpace’s features are shortly described, followed by the process of rever-
se engeneering to achieve requirements needed for the implementation
of the missing functionality. Adjacent tasks implement the needed featu-
res using SUN’s Standard Tag Library for internationalization and some
modifications in two classes for use of the urn:nbn scheme as persistent
At the end, a short view on the future of institutional repositories is
taken, furthermore some local long-term objectives on DSpace are dis-