每個設計素材都有一些特色、文化背景、演進與典故，而足具表徵性，這些特色可能有關物理性、造形性、材料性、使用慣例…，其中外觀上的特徵，在設計上就常被拿來做為設計的題材；這些素材的各種造形特徵、性格與內在意義，都可歸屬在特色屬性的範疇內，這裡統一將這些素材的性質以「特色屬性」規範之。本研究目的在探討設計素材轉化為產品運用時，相關的設計思維與模式運用，以相關的設計模型來檢視一系列的設計操作，從而探討其中的發想過程與設計策略。而為了聚焦於素材的特色屬性之發展性探討，以僅給定題材（花窗）的方式，依設計素材本身給出的特性線索（如：花窗有窺看的特性），尋找合適的產品目標（如：遮簾），其間的關鍵便是關緣相似性的對應：窺看與遮擋（花窗的窺看對應上了遮簾的遮擋特性）。關係的相似性在來源與目標間扮演著匹配的關聯性對應，在設計操作上有助於設計素材在自身特性上的發揮，更跳脫了僅為外觀相似性的造形操。作最後，透過設計模型的紀錄來提供設計思路的檢驗與討論。

The sources of design practice as the materials that represented the characteristics, cultural backgrounds and classic allusions as the properties with physical forms, material performance and customary practice. In general, the features of exterior appearances are regard as the subject matter in design practice. All the features, temperaments and inner meaning of the materials are within the orbit of the characteristic attributes, this paper will named all the properties ＂Characteristic attributes＂. This paper focuses on the development of the design thinking and design method. With the concept of the relational similarity, the design model explores the design thinking of the design projects. The subject of the source was set for the sake of the development of characteristic attributes, it provides the target seeking which is appropriate for the properties of source, to lead the source turn into the target(Product) as the design method from the perspective of relational similarity. The Mapping of relational similarity perspective is useful for designer's similarity judgment between source and target. It results the reflective study in products design by the design model, enhanced the design thinking to transform the properties of materials into a valuable solution.