Ecological surveys generate large quantities of data database technology has not yet reached its full potential in this area. Here we investigate approaches to modelling ecologica...
Protection is an essential issue for the kind of heterogeneous distributed interoperable object environments, which Java and CORBA are a glimpse of. A uniform protection mechanism...
We describe the integration of a structuredtext retrieval system (TextMachine) into an object-oriented database system (OpenODB). We use the external function capability of the da...
Queries in object-oriented datab;Lqcs are formulated against a class and retrieve instnnccls of the class sat,isfying a certain predicate on the att,riblltes of the class. The pre...
The requirements for the QoS of distributed applications are traditionally expressed in terms of network oriented or systems oriented parameters. In general, the users of these ser...
Cristian Hesselman, Ing Widya, Aart van Halteren, ...