2009 Volume 8 Issue 3 Pages 843-849
It doesn't put a strain in the user with the sensor by the miniaturization of the stock vice, the measurement of T(time), P(place), and O(ocassion) becomes possible, and the application to information service begins to try. However, because only the situation that can be thought from the sensor in the service of the current state is presumed, and the presumption of the situation in which the user needs information is not understood, information matched to user's TPO is not necessarily being offered. Then, it proposes the layer model of the situation assessment that combines the situation presumption of a bottom-up expression that presumes the situation that can be thought from the sensor presuming the situation to the top down type to presume information for which the user needs information in this research. The proof experiment that offered sightseeing information to timing that the user judged information to be necessary was conducted by using the proposal model to serve the sightseeing support, and utility was verified. It was interested in the our information on 60% by information on 50% being used among information offered to the result and the user.
