STEP has been worked out by ISO. The article introduced the technology of integration of CAD and CAPP system based on STEP standard and provided the integration project based on STEP - standard.

• STEP(Standard for the Exchange and Pressentation of Product Model Data)标准是国际化标准组织制定的产品数据表达与交换的标准,介绍了通过STEP标准来实现CAD/CAPP系统集成技术,并给出了基于STEP集成方案。