Product conceptual design includes the function,principle,shape,layout and structure design during early product design phases. The paper illustrates the fundamental connotation of Computer Aided Conceptual Design(CACD).

• 指出产品概念设计包含设计早期的功能、原理、形状、布局和结构设计等内容，阐明计算机辅助概念设计（computeraidedconceptualde－sign，CACD）的内涵。