Abstract
In order to develop a complex interactive system, user-centered evaluation (UCE) is an essential component. The new interaction paradigms encourage exploring new variables for accounting the users’ experience in terms of their needs and preferences. This is especially important for Adaptable Virtual Environments (AVE). In this context, to obtain a more engaging overall user’s experience, a good designer should perform proper formative and summative usability tests based on the user’s emotional level, which become a UCE activity. Our methodology tries to overcome the weaknesses of traditional methods by employing a Brain Computer Interface (BCI) to collect additional information on user’s needs and preferences. A set of preliminary usability experiments has been conducted for (i) determining if the outcome of a BCI is suitable to drive the designer in organizing the user-system dialog within AVE and (ii) evaluating the user-system dialog, in terms of dynamic increase of the emotionally-driven interaction’s customization.
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