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As part of the study at the Leibniz Research Centre for Working Environment and Human Factors at the TU Dortmund (IfADo), 24 subjects were asked to perform tasks while standing and walking. Some wore smart glasses or a headset that gave them instructions. It turned out that people who repeated the same task for a longer period in one go while standing reacted faster with a headset. This resulted in them making more mistakes, too. Those who walked were able to do a good job of performing repetitive tasks with the smart glasses. But when the tasks changed, they reacted more slowly because they were distracted by the glasses. The researchers concluded that the success of smart devices also depends on the working environment. If the display of the smart glasses is distracting, it may be useful to temporarily switch it off.

Furthermore, companies should not neglect data protection when using such devices. In 2018, the German Federal Institute for Occupational Safety and Health (BAuA) published a guideline summarizing the corresponding legal requirements for adaptive assistance systems.