Abstract
In this paper, three main objectives are hung out. The first is to propose a method to visualize and estimate the thought processes of designers in a quantitative fashion. A newly proposed concept, "Importance Factors Connectivity Map" is to display connectivity between importance factors in checking a detail drawing in a three-dimensional space graphically and quantitatively. The second is to reveal similarities and differences of thought morphology developed based on the proposed method in terms of experience and nationality.