Emerging technologies like mobile and wireless communication are offering promising opportunities to enable mobile healthcare delivery to citizens. But, enhancing the quality of service of such systems demands systematic improvement of existing service infrastructure. In this paper, we describe a context information refinement architecture proposed to address the shortcomings of existing works in relation to context information refinement in pervasive medical systems. The shortcomings are lack of adequate consideration for: quality parameters of context information, relevance of context information and particular requirements of the pervasive healthcare domain. The proposed architecture facilitates and coordinates the refinement of context information starting from acquisition of context information up until the refined context information is delivered to the target application in a pervasive medical system. We developed a prototype that implements the core components of the proposed architecture and evaluated it with real-life pervasive healthcare scenario and proved the validity of the architecture using a real-life scenario.
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