Services Based Integrated Architecture for Adaptive Multimedia Delivery

Web 2.0 changes the role of Web users from information Web consumers to Web participants. In fact, when information is delivered, users' interactions modify data related information, making users authors themselves. Data acquire a new identity, each time they are used or modified according one's goal. They do not depend anymore on their producer and on the context where they have been published, but they are self-contained. We present here an integrated architecture, that exploits data related information, provided as XML metadata for storing, retrieval and delivery of multimedia contents. Metadata describe semantic, data organization, geographic reference, ... . A prototype has been implemented to experiment the integration of an original service for content adaptation to client profile. We focus here on platform design, implementation and on service architecture. We realized a significant case study for semantic and location based information retrieval to demonstrate the effectiveness of the proposed approach.