Usability Study of Multi-modal Interfaces Using Eye-Tracking.

The promises of multimodal interaction to make interaction more natural, less error-prone and more enjoyable have been controversially discussed in the HCI community. On the one hand multimodal interaction is being adopted in fields ranging from entertainment to safety-critical applications, on the other hand new forms of interaction techniques (including two-handed interaction and speech) are still not in widespread use. In this paper we present results from a usability evaluation study including eye-tracking on how two mice and speech interaction is adopted by the users. Our results show evidence that two mice and speech can be adopted naturally by the users. In addition, we discuss how eye-tracking data helps to understand advantages of two-handed interaction and speech. [ABSTRACT FROM AUTHOR]