Reference model for data fusion systems

In this paper we offer an overview of design principles and propose a fusion process reference model that provides guidance for the design of data fusion systems. We incorporate a formal method approach to fusion system design and show the role of the psychology of the human/computer interface in the system design process. Data fusion is a complex, multi-faceted field that has evolved from a number of different disciplines. This disparate nature has lead to a largely bottom-up approach to data fusion system design where the components are constructed first and the system- level issues addressed afterwards. The result is an ad hoc, prototype driven philosophy which, we content, is neither efficient nor effective. We believe that design of data fusion systems needs to be given proper consideration, with a top-down approach that addresses system-level constraints first, thereby offering the possibility of re-usable, abstract structures. We offer an object-centered model of data fusion together with practical tools for studying and refining the model so that it can be useful in designing real data fusion systems.

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