Using Distributed Active Real-Time Database Functionality in Information-Fusion Infrastructures

• We present a list of requirements that need to beaddressed by an infrastructure for information fusion whereapplications have real-time requirements. The requirements aregrouped into configuration requirements, temporal requirements,and robustness requirements. We show how the functionality ofa distributed active real-time database system (DARTDBS) canmeet many of the given requirements, and therefore, argue thatit is suitable for use in an information-fusion infrastructure withreal-time requirements. The design of a particular DARTDBS,the DeeDS architecture and prototype, is presented as proofof concept. A comparison with some alternative infrastructuresis briefly discussed. We describe a small distributed real-timesimulation experiment using DeeDS as infrastructure, and discussopen questions such as how to deal with uncertainty managementof information sources, recovery of information fusion nodes, andharmonizing data structures from different information sources.

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