摘要
文中提出了一个基于对象的工作流活动定义,在此基础上引入了ECA规则,作为对象消息通信的基础,提出了一种新的基于对象和ECA规则的工作流模型。着重讨论了工作流失败处理和恢复的策略,在考虑工作流活动之间的控制依赖和数据依赖的同时,引入了资源依赖的概念,提出了强数据依赖、强控制依赖和强资源依赖的概念,并给出了关键的消息规则。
A definition of workflow activities based on object is proposed in this paper. Based on object,ECA rules are introduced,which act as the basic of communications of object messages. A new workflow model based on object and ECA rules is proposed. Strategies about failure handling and recovery in Workflow are emphasized. Control dependency,data dependency and resource dependency between workflow activities are considered. Besides,strong data dependency,strong control dependency and strong resource dependency are proposed too. In this paper,key message rules are described.
出处
《计算机应用》
CSCD
北大核心
2003年第10期48-50,共3页
journal of Computer Applications
基金
山东省中青年科学家基金项目"面向对象的工作流建模技术"资助
关键词
工作流模型
失败处理
依赖
强资源依赖
ECA规则
workflow model
failure handling
dependency
strong resource dependency
ECA rules
