TR-IT-0203 :February, 1997

Laurel Fais

The Effects of Experience and Interface on Users' Behavior in EMMI

Abstract:We describe the motivation for and the design of a new interface for EMMI, including a "talking head" and greater initiative on the part of the system. We report the results of experiments in that new setting, comparing the behavior of experienced vs. inexperienced users, and comparing this new interface with the previous interface. The experience of the user had no effect on his/her behavior. Subjects in the new interface exchanged more information, in a more efficient manner, and required less oral prompting to use the typing options.