Model-Driven Dynamic Service Delivery in Mobility and Ambient Environment

The rapid evolution of the new generation networks and services (NGN/NGS), particularly the converged infrastructures, raises the challenge of ensuring not only the Media Delivery but also the Service Delivery towards the user, regardless of his terminal, his access network, his preferences and his Quality of Service. The existing approaches for Media Delivery enable the improvement of the network in order to share and allocate the resources in the most optimal way. But the mobility and the heterogeneity of the user's ambient environment invoke more and more the complexity of the Service Delivery. In this paper, we propose a Dynamic Service Delivery process over Media Delivery in order to ensure the service continuity during the mobility or during all the other changes in the user's ambient environment. This Delivery process is driven by a model which represents the real world and differentiates the Service Delivery treated by the service platform from the Media Delivery treated by the network. The advantage of the proposed model is that it ensures the consistency within the deployment of user session and takes into account the End to End Quality of Service in the NGN/NGS context.