SCIENCE AND TECHNOLOGY ENGLIAH FOR MECHANICAL ENGINEERING 2. Developing a real understanding of the engineering design process is an urgent need, yet the problems that must be sol ved are immense These problems range from purely technological to cokie Rie and sociological issues. Additionally, most people believe that computational support for designers has the potential to significantly increase their productivity. However, advances in computer technology will certainly occur more rapidly than our ability to understand systematically their (real and potential) impact on design and designers. The situation strongly suggests that many styles of research, aimed at different facets of design, are needed. On one hand, it is essential to study the design process, as it actually occurs. Ullman with his colleagues and Tang are two examples of work following this path. On the other, it is necessary to build experimental systems embodying techniques and architectural principles believed to offer value to designers, and evaluate them rather empirically. The research reported here follows this latter approach. facet面,方面SCIENCE AND TECHNOLOGY ENGLISH FOR MECHANICAL ENGINEERING 认识的 2. Developing a real understanding of the engineering design process is an urgent need, yet the problems that must be solved are immense. These problems range from purely technological to cognitive and sociological issues. Additionally, most people believe that computational support for designers has the potential to significantly increase their productivity. However, advances in computer technology will certainly occur more rapidly than our ability to understand systematically their (real and potential) impact on design and designers. The situation strongly suggests that many styles of research, aimed at different facets of design, are needed. On one hand, it is essential to study the design process, as it actually occurs. Ullman with his colleagues and Tang are two examples of work following this path. On the other, it is necessary to build experimental systems, embodying techniques and architectural principles believed to offer value to designers, and evaluate them rather empirically. The research reported here follows this latter approach. facet 面,方面