With the goal to cut training time Denso's highly skilled inspectors wore eye tracking glasses while conducting an inspection. The eye tracking data revealed their visual patterns providing an explanation to what was behind their high quality and efficiency.
An eye tracking study was conducted at one of their factories in Japan and it revealed some vital information on what differentiates the methods of experienced workers from those of new recruits.
In an inspection, two parts are checked together at the same time. The eye tracking data revealed that by moving their eyes along the parts in the shape of a number 2, the experienced inspectors were more likely to notice something unusual as this method allowed them to focus on key aspects and thoroughly check them. In contrast, the eye tracking study revealed that inexperienced employees had unstable gaze patterns and looked haphazardly at different sections of the parts.