A state model for the realization of visual perceptive feedback in smartkom
Peter Poller, Norbert Reithinger · 2004
User acceptance of multimodal dialog systems in general depends not only on the quality of the system output but also significantly on the quality of the process feedback the user gets during interaction. We show an approach that permits the system to present simultaneously- and synchronously to the ongoing processing- adequate de-tailed and adaptive immediate feedback in various ways. For example, in multimodal dialog systems correspond-ing graphical presentations and/or appropriate behaviour patterns of an animated agent during user input process-ing significantly contribute to a more natural and expres-sively more powerful system. Additionally, in case of processing errors the approach provides sufficient infor-mation to be able to present the user detailed descriptive feedback on the stage of processing at which the error occurred. The approach is mainly based on a module working state model that is used to determine in real time general processing state information in terms of relatively fine grained global system working states. Evaluations of the overall system show that simultaneous processing feedback is highly appreciated by users. 1.