Browsing by Author "Suoranta, Sanna"

This master's thesis investigates how the saliency of user interface components affect users when they choose between two options. Many services have moved online and they usually ask their users to accept web cookies that are either necessary for the functioning of the service or improve it. Users are enticed to operate to the advantage of the service provider by offering an attention-grabbing salient option for acceptance. For this thesis, software was developed, in which users were presented with three types of dialogues, with a difference in visibility between the two UI components. The user was offered two normal buttons to choose from, a normal button with a background-free button, or a normal button with a link. The experiment had 20 participants who were monitored using eye-tracking camera glasses, and the speed and accuracy of their tasks were measured using timestamps at the clicking of a button. The tasks were so easy that almost all participants were able to choose requested action even though the task was asked to be done as fast as possible. The layout of the buttons had no statistically significant effect on speed, but the text of the button had: the quickest was to select the button that contained the text OK. In the experiment, the marking of the areas of the direction of the gaze was not precise enough to determine where the user first looks. However, statistically significant the fastest was to complete the task where the most salient option was the correct option, regardless of whether the user looked at only this side or both sides of the dialogue, or those cases where the right answer was a positive option on the right side of the dialog. Surprisingly, without the ecologically valid framing created by the task, the mere visibility of the component was not a significant factor, but the text of the UI component was.