摘要
针对工作流系统中存在的异常问题,提出了一个基于事务的工作流异常处理模型,建立了异常监测、分析、处理机制,增加了触发和向后恢复的方法。以ECA规则形式建立了异常事件库,实现了对异常的监测、分析和处理,并给出了监测算法。在此基础上,讨论了工作流静态和动态修改的方法和算法,保证了工作流修改后数据的一致性和正确性。
Due to the exceptions existing in the workflow systems,in this paper,a transactionbased workflow exception handling model;the mechanisms for monitoring analyzing and handling of exceptions;and the additional methods for triggering and backward recovery;are presented.The exceptional event base according to ECA rules have been established.The monitoring,analyzing and handling of exceptions are realized,a monitoring algorithm is also given.Based on these,the methods and algorithms of static and dynamic modification for the workflow to solve the data consistency and correctness after exception handling are discussed.
出处
《吉林大学学报（工学版）》
EI
CAS
CSCD
北大核心
2003年第3期46-50,共5页
Journal of Jilin University:Engineering and Technology Edition
关键词
工作流
异常处理
事务
数据一致性
workflow
exception handling
transaction
data consistency
