Recently, multimedia computing turns into mobile, pervasive and context-aware. Adaptive multimedia computing is becoming the new paradigm for building complex information systems based on the use of different devices, web services and XML specifications. In dynamic environments, multimedia applications are potentially adaptive and are aware of their changing contexts. An intelligent context-aware infrastructure must be based on an appropriate context model such as to represent, manage and access context information. This paper proposes an ontology-based context model that supports context reasoning and context management for adaptive multimedia systems. The proposed model is flexible as it provides a general framework that can be applied to each multimedia application. Moreover, the model is extensible as it provides mechanisms to add new multimedia domain specifications.
Keywords: context ontology, context management, adaptive multimedia systems, web services, XML, context-aware infrastructure, intelligent infrastructure, context reasoning