ファジィ測度・ファジィ積分モデルを用いたヒューマン・インタフェースの設計

抄録

In this paper, first of all, three kinds of concepts are defined to select essential elements in a human evaluation model by fuzzy measures and integrals. Increment Degree implies the increment degree from fuzzy measures of composed elements to the fuzzy measure of a combined element. Average of Increment Degree of an element means the relative possibility of superadditivity of the fuzzy measure of each combined element. Necessity Degree means the selection degree of each combined element as a result of the human evaluation. Next, task experiment, which consists of a static work and two dynamic works, is performed by the use of some human interfaces in order to apply the evaluation model to the design of human interfaces. In the experiment, (1) a warning sound which gives an attention to subjects, (2) a color vision which can be distinguished easily or not, (3) the size of working area and (4) a response of confirmation that is given by an interface, are considered as human interface elements. Subjects answer the questionnaire after the experiment. From the data of the questionnaire, fuzzy measures are identified and are applied to the proposed model. The guiding principle of the design of human interfaces is obtained by the comparison of human interface elements extracted from the proposed model and those from the questionnaire. On the basis of the obtained guideline, another human interface is designed and another experiment is performed with the designed interface. Effectiveness of this method is confirmed by the second task experiment.