Abstract
The goal of this study is a finding about an attitude toward electric appliances apples to appliances design and usability. Therefore, in this study, a relationship between attitude to users' electrical appliances and cognitive elements required for the operation (Knowledge and Mental models) was investigated. For that purpose, two experiments were conducted. First, a relationship between the attitude and a knowledge structure toward electric appliances was grasped by a questionnaire in the 1st experiment. The knowledge structure was extracted within a Sentence Completion Test, and was grasped using Key Graph and Formal Concept Analysis. Next, a relationship between the attitude and a degree of mental model construction in an interface operation was grasped by a questionnaire and an experiment of GUI operation in the 2nd experiment. The degree of mental model construction was understood from the view of Functional Model and Structural Model. As a result of these experiments, it has been understood that the attitude relates to a depth of the knowledge, an originality of an opinion on electrical appliances and a construction of the Functional Model.
