This paper introduces the coordinated design methods of embedded system and points out defects of the existing typical methodologies,such as VULCAN,COSYMA and POLIS.

• 文中通过介绍现有嵌入式系统的协同设计方法,如:VULCAN,COSYMA和POLIS,指出了现有方法的缺点,提出了一种改进的基于UML的新方法。