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Since context aware systems differ in the way they interact with users, the way they interpret the context of its entities and the actions they need to take, each individual system is developed in its own way with no common architecture. A number of architectures have been proposed which are application specific using a fixed number of software components or layers. This fact makes developing every context aware system a challenge. To address this issue, the authors describe a new and generic architecture that may be shared by many systems using the Pipe-and-Filter style. The architecture benefits from a generic context model which abstracts raw context information in a formal way to be functional in pervasive context aware application domain.
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