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A graphical interface for cooperative access to distributed and heterogeneous database systems

Ein graphisches Interface zur gemeinsamen Benutzung verteilter heterogener Datenbanksysteme
: Weißenberg, N.; Wu, X.

Desai, B.C.; Eaglestone, B.:
IDEAS '97. International Database Engineering and Applications Symposium. Proceedings
Washington: IEEE Computer Society Press, 1997
ISBN: 0-8186-8114-4
International Database Engineering and Applications Symposium (IDEAS) <1997, Montreal>
Fraunhofer ISST, Institutsteil Dortmund ()
Browsing; distributed heterogeneous environment; federated database system; graphical user interface; object-oriented data model; query; repository

In this paper we present the graphical interface of the system VHDBS, which has been jointly developed by an industrial research project at the Technology Center of the German Telekom and at the Fraunhofer ISST. The VHDBS system enables the integration and interoperation of existing distributed and heterogeneous databases, which were developed independently. The graphical interface FGRAPH of VHDBS provides uniform access to distributed and heterogeneous data. The interface is based on a sophisticated design, which enables browsing on both schema and object level, and allows both query and browsing of objects. In particular, the user can move back and forth freely between query and browsing activities. Cooperative access to the data in various underlying databases is supported and platform, location and data model transparency is provided to the user.