Gazeover - Exploring the UX of Gaze-triggered Affordance Communication for GUI Elements.

The user experience (UX) of graphical user interfaces (GUIs) often depends on how clearly visual designs communicate/signify "affordances", such as if an element on the screen can be pushed, dragged, or rotated. Especially for novice users figuring out the complexity of a new interface can be cumbersome. In the "past" era of mouse-based interaction mouseover effects were successfully utilized to trigger a variety of assistance, and help users in exploring interface elements without causing unintended interactions and associated negative experiences. Today's GUIs are increasingly designed for touch and lack a method similiar to mouseover to help (novice) users to get acquainted with interface elements. In order to address this issue, we have studied gazeover, as a technique for triggering "help or guidance" when a user's gaze is over an interactive element, which we believe is suitable for today's touch interfaces. We report on a user study comparing pragmatic and hedonic qualities of gazeover and mouseover, which showed significant higher ratings in hedonic quality for the gazeover technique. We conclude by discussing limitations and implications of our findings.