基于COM技术的GIS应用系统中一致性数据管理的实现

A COM-based Implementation of Data Consistency Maintenance in GIS Application

提出了一种基于COM技术在GIS中进行数据管理的方案，通过一定的关系表定义分开存储的空间数据和属性数据的关联，利用组件按照两阶段提交协议访问数据库和文件系统中的数据，从而保证数据的一致性。

This paper puts forward a COM-based method of data maintaince in GIS. In order to maintaince the consistency of data ,it defines relevancy of spatial data and attribute data with some relation tables ,and uses component to access data in the database and data in the file system according to two-process commission.