Experiments with Semantic Support in Mobile Service Architectures

Next generation services are challenging today´s telecom service architectures with triple awareness: context, connectivity and information/content. Their heterogeneity, distribution and dynamics make the transformation to these properties demanding. As in most of the Internet-based architectures these transformations are heading to direction of: semantic Web properties, service oriented architectures and service/information ontology. In this paper we present a practical analysis of design and implementation efforts, and performance overhead introduced by reorganizing the example service architecture in the above-mentioned three directions. We focus on the service discovery and composition tests, in particular two cases: (1) when if is possible to find an end-service providing the wanted results (2) when it is not possible to find a wanted end-service, but it is possible to find components/enablers that can be combined and produce the wanted results, or the results with similar QoS and quality of information.