Eye tracking is a design evaluation method used to visualizeeye movement of a person. Duringusability tests, eye tracking enablesthe moderatorand further spectators to trace whereparticipantsare looking or not looking, and how long they are looking atparticular locations. This way observers are able to betterunderstand participants’ actions.
Using a special analysis software, the gaze point data of severalparticipants can be superimposed after the test. Thereby, it ispossible to state how the tested object has exactly been perceived.Eye tracking results are visualized as heatmaps, opacity maps orgaze plots.
Find a more detailed description of the method here:Eye Tracking