Abstract
Recent technological advances have enabled both the consumption and provision of mobile services (m-services) by small, portable, handheld devices. However, mobile devices still have restricted capabilities with respect to processing, storage space, energy consumption, stable connectivity, bandwidth availability. In order to address these shortcomings, a potential solution is context-awareness (by context we refer to the implicit information related both to the requesting user and service provider that can affect the usefulness of the returned results). Context plays the role of a filtering mechanism, allowing only transmission of relevant data and services back to the device, thus saving bandwidth and reducing processing costs. In this paper, we present an architecture for context-aware service discovery. We describe in detail the system implementation and we present the system evaluation as a tradeoff between a) the increase of the quality of service discovery when context-awareness is taken into account and b) the extra cost/burden imposed by context management.
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