Contextual adaptation of ubiquitous information systems

The evolution of the ubiquitous computing requires a lot of efforts as for the design and the development of information systems. Indeed, the data come on the one hand, from different sources of very heterogeneous and distant information, and on the other hand, the users are more and more nomads and use multiple devices to reach information. The variation of these features entails changes of execution conditions of an application, and therefore the modification of context. It is desirable that the well stocked information answer the needs and the user´s preferences. This objective can be reached through the adaptation of information systems to the context of use. This article proposes a new vision of the MDA (Model Driven Architecture) whose objective is to introduce all contextual information and user´s preferences (modeled data) in the life cycle of the MDA. The gotten applications will be able to satisfy the user´s wishes while offering him some relevant and personalized data.