摘要
快速变化的外部环境,对工作流管理系统的适应能力提出了新的要求。基于Petri网描述的工作流模型,提出一种新的工作流动态演进方法。该方法通过对工作流实例执行历史信息的记录和分析,并结合虚拟执行以及事务回滚等思想来解决工作流动态演进的问题。同时给出了实现工作流实例迁移的算法。
Rapid changing external environments bring forward new requirements for workflow management system＇ s adaptability. This paper proposes a new workflow dynamic evolution method. The method is based on the workflow model described with Petri net, and the historical execution information of workflow instance is preserved and analyzed ; besides, the ideas such as virtual execution and business rollback are utilized to resolve workflow dynamic evolution as well. An algorithm is introduced to help realizing the migration of workflow instances.
出处
《计算机应用与软件》
CSCD
2009年第11期131-133,153,共4页
Computer Applications and Software
