中文摘要：

当前功能结构图方法仅以意图域概念＂功能＂为基础,但同时暗含从现实域出发的考虑,这造成了复杂度耦合,使得绘制过程难以下笔。为解决这一问题,吸收现实域的Affordance概念与功能概念共同作为方法基础,并基于这两个概念将功能结构图方法的绘制分解为：从功能维度逆向思考＂人想要发生什么＂的倒逼功能结构图,以及从Affordance维度顺向思考＂在其环境下可能发生什么＂的Affordance功能结构图,从而完成复杂度解耦,得到改良功能结构图方法。该方法解除了绘制过程中的思维混乱,降低了绘制门槛,提高了实用性。

英文摘要：

Based on ＇function＇ in intention realm but mixed the consideration from physical realm, the current func tion structure method was complexity-coupled and hard applied. To solve this problem, Affordance concept of real domain and function concept were taken as a common basis to decompose the function structure method. One was the reverse function structure from the function view, which started from the consideration what the people want to do; another was Affordance function structure from the affordance view, which started from the consideration what the environment allow to occur. Thus the decoupling of complexity was accomplished, and a reformed function structure method was obtained. The thinking confusion in the drawing process was eliminated with proposed meth- od, and the practicability was also improved.