本文着重研究虚拟原型技术中的两个关键问题：产品概念设计建模、虚拟特征生成及其主要实现技术。
This paper addresses the following techniques: product modeling in conceptual design, virtual feature generation, and some important implementation techniques of them.
表 1 描述了被引入到 UML 2.0 中的支持 USBD （基于统一场景的设计）概念建模的扩展。
Table 1 describes the extensions introduced to the UML 2.0 to support modeling of the USBD concepts.
一般应用程序设计用uml建模工具，例如Rational Soft ware Architect，以及与应用领域相关的概念来实现。
Application design is typically carried out using a UML modeling tool such as Rational Software Architect, and concepts relevant to the application domain.
应用推荐