关键词: 设计决策, 灰色理论, 内隐测量, 视觉感知, 眼动追踪

Abstract: Aiming at the problems that tacit knowledge was difficult to be revealed in the design decision processes， which led to the uncertain decision results， a grey design decision method blending visual perception data was proposed. Based on the mapping among visual perception， attention and preference， a cognitive model of visual perception was created. Integrating the decision makers subjective choice of explicit dimension and the eye tracking data of implicit dimension， a preference design decision-making evaluation mechanism was constructed, cosine distance was used to assign the weight of decision makers， and the gray decision comprehensive ranking was used to obtain the order of proposals. A case study was carried out on the rice cooker， the results show that the method may obtain objective and accurate decision-making conclusion. This protocol may be effectively applied to group decision-making under the conditions of limited information， and provide method reference for design innovation. 

Key words: design decision, grey theory, implicit measurement, visual perception, eye tracking