Scenario-Based User Experience Differences of Human-Device Interaction at Different Levels of Proactivity.

In this paper, it mainly studied the satisfaction and mental comfort of people interacting with intelligent devices at different levels of proactivity. Three models were proposed corresponding to 3 levels of proactive interaction: L1 - “arouse and wait”, L2 - “arouse and output”, and L3 - “output directly”. The experiment was conducted with 6 short video sequences divided into two contexts where intelligent devices proactively initiated interaction with people at the three levels mentioned above. The short video sequences in each scenario were designed under the three models. In addition, the discovered subjective scores of participants’ satisfaction and comfort were presented, together with participants’ opinions on different levels of the devices’ proactive interaction. The analysis of the data revealed that people showed various levels of satisfaction and comfort towards the models under different contexts. Furthermore, this study also discussed the reasons behind the subjective scores and the benefits of the proactive interaction models. This research is aimed at offering some guidance in choosing interaction models to proactive interaction design.