Impacting HCl by using visual UI characteristics to adapt users' solving strategies to the nature of tasks: Or why implicit factors are not necessarily subjective

摘要

Human-Computer-Interaction is nowadays mostly visually mediated. This visuality involves implicit factors which are, at this day, mostly handled as an independent and highly subjective dimension. The present research is proposing an alternative approach by exploring visual cues' objective influence on people's cognition. In that line, a first study identified color and form characteristics as being involved in activating either a vigilant prevention cognition or a flexible promotion cognition. These findings were then used to visually design creative or accuracy oriented tasks. Results confirmed that people were supported in task-execution when the design triggered the matching cognition. Conversely, handling was impaired when the design favored mismatching strategies. Overall, this research provided a solid base to support actual system handling by integrating HCl's implicit dimension which has been handled as a subjective and separate item for too long.