As the Web grows, more and more data has become available under dynamic forms of publication, such as legacy databases accessed by an HTML form (the s...

Information presented in a Website is usually organized into certain logical structure that is intuitive to users. It would be useful to model website...

In this paper we present a performance comparison of access methods for time-evolving regional data. Initially, we briefly review four temporal extens...

The most effective technique to enhance performances of multidimensional databases consists in materializing redundant aggregates called views. In the...

Virtual enterprises gather partners distributed in space, time and organizations, in order to achieve a common goal. Their business process realizatio...