口語使用的便利性與普遍性已日益增加，且其效果與數值並無差異因而適用專家在作決策時評估之用，因此口語模式（verbal model）已被廣泛地使用在決策系統上。本研究根據決策者行為構面（對評估口語的極值與平均位置的考量）的特性，針對口語評估語的綜合評判函數提出適用的條件與性質，並據以建構多人決策之口語綜合評估函數對口語直接作綜合運算。本研究著重在決策者行為構面，並提出一系統化的程序來表示其對評估口語權重的影響，這是統計方法無法分析的。

Verbal terms have become increasingly convenient and prevalent nowadays as they can be easily used by experts (decision makers) for decision preferences and reveal the same affectivity in terms of number for decision making. Therefore, the verbal models have been applied frequently to decision systems. This paper has proposed available conditions and properties of aggregation function for verbal models from the perspective of social behavior (i.e. averaged location and polar evaluators of decision makers in group decision making). A multi-person verbal model is then established and aggregation function is also aggregated directly by verbal terms according to the above conditions and properties. The proposed model focuses on behavior of decision makers and proposes a systematic process to express the impact of these behaviors on the weight of verbal terms, which cannot be analyzed by any statistical methods.