摘要
规划电力营销管理信息系统的总体结构 ,必然涉及数据是集中还是分布存放的问题 ,采用何种方案需要对主机、系统软件、通道等各项费用进行综合考虑。在选定数据分布存放的方案后 ,必须解决上下级系统间的数据复制问题。不同于复制数据本身这种传统的复制方式 ,文中使用中间件和交易复制技术实现了应用级的数据复制 。
When planning the overall architecture of the electric power marketing MIS, there is bound to be the problem of whether the application data should be concentrated or distributed? The adoption of the scheme requires that comprehensive consideration be given to the costs of the host computer, system software and channels. Once the scheme of distributed location is chosen, data duplication between the upper and lower managing levels must be solved. Unlike the conventional duplication of duplicating the data itself, the application level data duplication is achieved using middle-ware TongLINK/Q and transaction synchronization. This technique can be used to guarantee the consistency and efficiency of similar distributed systems.
出处
《电力系统自动化》
EI
CSCD
北大核心
2003年第16期81-83,共3页
Automation of Electric Power Systems
关键词
管理信息系统
分布式系统
数据存放
交易复制
中间件
management information system (MIS)
distributed system
data storage
transaction-based duplication
middle-ware
