动态工作流中利用触发器监控信息与数据流  

Monitoring data flows and information using triggers in dynamic workflow

作　　者：邬少飞[1] 韦司滢[1] 

机构地区：[1]华中科技大学管理学院,湖北武汉430073

出　　处：《计算机工程与设计》2007年第23期5765-5766,5821,共3页Computer Engineering and Design

摘　　要：在一个组织中对信息和数据流进行监控和验证是一个复杂、艰难的过程,它不仅包括要完成复杂的查询,还有代码的重写、重编译及每次增加或改变信息后系统的重新运行。主动数据库系统通过探测数据库信息的变化及对变化做出回应来支持该应用,这包括支持指定的触发器系统来完成对某些数据的控制任务和监控信息的改变,而当前触发器系统的问题就在于在一个动态的和不断演化的环境中它对探测和监控信息和数据流的支持有限,为突破该限制提出了一种机制,该机制中触发器可以在动态的工作流环境中对信息和数据流进行监控。It is a difficult process to monitor and validate information and data flows in an organization. The process involves not only implement complex queries but also code changes, recompilations and reruns each time we add or change information. The applications are supported by active database systems through detecting and responding to changes in databases. It includes performing some data control tasks and monitoring changes by specified trigger systems. However the most problem with current trigger systems is that their support for detecting and monitoring information and data flows in a dynamic and evolving environment is too limited. A mechanism is presented in which triggers may be placed to monitor information and data flows in a dynamic workflow environment.

关 键 词：监控 触发器 主动数据库 动态对象模型 工作流 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]