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Matching system knowledge and user expectations in situation-aware systems

: Meissen, U.; Pfennigschmidt, S.; Voisard, A.; Wahnfried, T.


IEEE Computer Society:
International Conference on Pervasive Services 2005, ICPS '05. Proceedings : Santorini, Greece, July 11 - 14, 2005
Piscataway, NJ: IEEE Service Center, 2005
ISBN: 0-7803-9032-6
International Conference on Pervasive Services (ICPS) <2, 2005, Firostefani/Santorini>
Fraunhofer ISST ()
situation awareness; pervasive computing; mobile information system; demand-oriented information supply; Information logistics; car driving assistance

Demand-orientation is of crucial importance in mobile and pervasive information services in right place. Increasing attention has been devoted to the notion of personalized services that take the situation of the user into account. The trade-off is to ensure appropriate information supply while preventing information overload. Comparing situations predicted by the system with the expectations of a user yields information about "so-far unexpected" changes the user should be informed about. This paper describes an approach to support situation-awareness and introduces an underlying model that additionally handles information from various sources. Our approach is illustrated in a driving assistance application.