Keeping coherence among web sources

Authors:
F. Arcieri;G. Melideo;E. Nardelli;M. Talamo
Affiliations:
University of Roma 2, Roma, Italia;University of L'Aquila, L'Aquila, Italia;University of L'Aquila, L'Aquila, Italia;University of Roma 2, Roma, Italia
Venue:
Proceedings of the 3rd international workshop on Web information and data management
Year:
2001

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Abstract

With the increasing popularity of the Web the problem of maintaining coherence of information contained in a vast collection of semantically related web pages has become a significant challenge. A fundamental issue is that an object exposed on a web page is independently and autonomously managed by the organizational unit responsible for its production and controlling the way it changes, but the same object is also needed (and visible) at web pages managed by different and independent organizational units. The aim is therefore to define a flexible but effective mechanism to automatically keep the representations of the same piece of information aligned in the various web pages.In this paper we discuss a formal model supporting this goal, which derives from practical experiences and from their formalization in the area of supporting coherence maintenance in the underlying legacy databases of cooperating organizations.