一种基于语义控制的长事务工作流模型  

A Long Transaction Workflow Model Based on Semantic Control

作　　者：金佳[1] 帖军[1] 

机构地区：[1]中南民族大学计算机学院,武汉430074

出　　处：《计算机与数字工程》2012年第12期50-52,共3页Computer & Digital Engineering

基　　金：中南民族大学中央高校基本科研业务费专项资金项目(编号:CZY11007)资助

摘　　要：在工作流系统中,长事务普遍存在,现有借鉴数据库事务处理方法的事务模型在对工作流长事务进行处理时存在着一定的局限性。为了解决工作流中长事务的共享资源访问控制和冲突解决效率等问题,在新模型中引入了语义控制协议,强调人的参与在事务处理中的重要性,并结合一致性状态和日志,能够有效的提高解决冲突的灵活性和效率、缩小事务规模和降低事务回滚的代价。The long transaction widely existing in the workflow system,there are some limitations in the current transaction model which referenced from database transaction processing method,when processing the long transaction in the workflow.In order to solve the problems of the access control of shared resources and solve the conflict efficiently in the long transactional workflow,introduced the semantic control protocol in the new model,stressed the importance of the artificial participation in the transaction processing,combined with the consistent state and logs,which can effectively improve the flexibility and efficiency of the solution to the conflict,reducing the scale of the transaction and the cost oftransaction rollback.

关 键 词：工作流长事务 工作流模型 语义控制 事务管理 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]