“…From these basic screen coordinate measurements, various gaze metrics are derived in relation to the stimuli (screen display), such as the fixation duration or dwell time (i.e., how long a gaze is fixed on a certain AOI), fixation count (i.e., how often the gaze revisits an AOI), number of revisits of the AOIs and scan-path characteristics (e.g., length and speed of eye movements; Ooms et al, 2014). Although a new technique, ET has already been applied in many research fields, such as software engineering (e.g., usability tests; e.g., Jacob and Karn, 2003;Nivala et al, 2001), marketing (e.g., advertising placement, webpages, product label design; e.g., Goldberg et al, 2002;Pieters, 2008;Pieters and Wedel, 2004;Poole and Ball, 2006), psychology (e.g., reading, scene perception, visual search; e.g., Rayner, 1998Rayner, , 2009Recarte and Nunes, 2000) and landscape perception and design (Dupont et al, 2013;Duchowski, 2007). However, gaze behavior does not provide feedback about why DSS users focus on specific information.…”