一种基于UML类图和活动图的故障树生成方法  

Fault Tree Generation Method Based on UML Class Diagram and Activity Diagram

作　　者：徐慧[1] 燕雪峰[1] 周勇[1] 

机构地区：[1]南京航空航天大学计算机科学与技术学院,南京210016

出　　处：《计算机科学》2016年第7期180-185,共6页Computer Science

基　　金：国防科工局十二五重大基础科研项目(c0420110005;NS2013091)资助

摘　　要：针对UML活动图在生成故障树的过程中只能反映活动事件流故障导致的系统失效,不能反映系统静态状态故障的问题,提出了一种活动图结合类图生成故障树的方法。在原有活动图的基础上,使用类图增加系统静态状态信息,设计活动图和类图到故障树模型的转换规则,将活动图中动态行为信息和类图静态状态信息转化为故障树中的节点要素。基于转换规则设计算法逆向遍历活动图和类图,自顶向下生成故障树。经过实例建模生成故障树,表明该方法能反映系统的动态行为和静态状态两方面的故障信息,为故障树生成提供了一种新的有效途径。Aiming at the fault tree generated from UML activity diagram which can only reflect the behavior stream fault and can＇t reflect the static fault,a method was proposed by using activity diagram combined with class diagram. On the basis of the original activity diagram, class diagram is used to describe the system static state information, desig- ning transformation rules from activity diagram and class diagram to the fault tree model to transform the activity dia- gram dynamic behavior information and class diagram static state information into fault node elements. Based on the transformation rules,the algorithm is designed to reversely traverse activity diagram and class diagram to top-down generate fault tree. Modeling to generate fault tree indicates that the fault tree generated by UML activity diagram combined with class diagram model can reflect the system behavior fault information and static state, providing a new effective way in the generating the fault tree.

关 键 词：UML模型 活动图模型 类图模型 故障树 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]