机械产品CAD系统设计需求动态响应法研究

A New Design Method of Mechanical CAD System-Dynamic Response Method

介绍一种机械产品ＣＡＤ系统初步设计的新方法─—需求动态响应法。该方法以面向对象的系统分析和设计方法为指导思想，针对机械产品ＣＡＤ系统用户的需求特征及动态变化的共性，结合成组技术的核心思想，通过建立用户需求分析模型，完成需求特征的分类和确认；建立用户需求与软件开发目标的映射模型，实现用户需求向软件功能目标的映射，再通过需求与软件目标对象的动态偶联，实现机械产品ＣＡＤ系统设计对用户需求的动态响应。

A new design mechod of mechanical CAD system-dynamic response method is introduced in this paper. This system design method is proposed by authors with object oriented and group technology as its guiding thought. The moudel of user's requirement features are completed according to user's requirement feature and dynamic changing general property of mechanical CAD system. Reflective model between the user's requirement and software development target has been built,meanwhile, the dynamic connection of the changing user's requirtment and software objective object each other has been established. The dynamic response has been realized through requirement analysis model, reflective model and dynamic connection in mechanical CAD system.