【摘要】 构件方法是满足ＣＡＳＥ环境开放性与集成化要求的有效方法之一。构件的表示与分层是构件构架中的两个基本问题，Ｍａｒｋｏｖ模型与３Ｃ模型是构件表示的两个有效模型，ＣＡＳＥ环境过程驱动的特征需要一个过程表达与过程控制的问题。因此，过程层是基于ＣＡＳＥ构件５个基本层次之上的最高层更多还原

【Abstract】 The software componeent is one of effective methods which can satisfy the openning and integrating of CASE environment. The representation and levels of components are two basic problems abotw component. Markov model and 3C model are two effective models of compoueuts The process level should be the highest vevel of CASE componewts based five of CASE componewts based five component hevels, because the representetion and confrol of process is asked by the proces driven CASEE更多还原