This article put forward an attribute model for 5|unit group soft structure,discussed the related method and languages,and described this model by example of BNF. This article also introduced the operate original language of the soft structure.

• 提出了一种五元组软构件属性模型 ；讨论了与之相关的方法和语言 ；并用 BNF刻划了所提出的模型 ；还介绍了软构件操作原语 .