Abstract
In recent years, the opportunity that users receive information from information systems has been increasing. The timing, frequency and presentment of interruption have not been controlled in most of the systems. In this paper, we proposed the interaction start method which reduces the negative effect of work efficiency of the interrupted user by mediating an interruption request from outside, users and information systems, for developing the secretary agent that supports acceptable interaction start. The agent estimates the user uninterruptibility from PC operation records, then controls the timing of interruption based on it. Moreover, the agent uses the ambient appeal using the joint attention and mutual gaze animations of CG character for presenting the interaction request. We confirmed the usefulness of the both methods and a reduction effect of negative influence for the work efficiency by interruptions.
