摘要： Concur任务树是一种具有代表性的图形化用户界面任务建模方法。UML2.0缺少对用户界面设计的支持，针对该问题在UML2.0中引入Concur任务树。利用基于元模型的扩展机制对UML2.0活动图进行扩展，建立Concur任务树的元模型及其表示法。应用结果表明，该方法不会丢失Concur任务树的任务分类特性。

关键词: Concur任务树, 统一建模语言2.0, 活动图, 任务

Abstract: ConcurTaskTrees(CTTs) is one of the typically task modeling methods of user interface. UML2.0 lacks support for user interface design. Aiming at this problem, this paper transforms CTT into UML2.0. It uses the extension mechanism based on metamodel to extend UML2.0 activity diagram, and builds the metamodel and notations for CTTs. Application results indicate that this method avoids to lose task classification property of CTTs.

Key words: ConcurTaskTrees(CTTs), UML2.0, activity diagram, task

中图分类号: 

• TP311