一种扩展型实时多数据库系统实现框架

An implementation framework of extended real-time multidatabase systems

实时多数据库系统提供了一个实时数据集成管理平台,它不仅可以处理传统数据库中的持久性数据,而且可以处理实时系统中的即时数据.首先简介了实时多数据库系统的特征,给出一种扩展型实时多数据库系统RT-Panorama的体系结构,和基于XML的实时数据模型XRTDM作为RT-Panorama的公共数据模型,针对实时多数据库系统的时限要求给出了RT-Panorama中的实时消息处理机制.

A real-time multidatabase system provides a platform for integrating real-time data sources. It can not only process persistent data in traditional database systems, but also deal with temporal data in real-time systems. So the characteristics of real-time multidatabase systems are briefly introduced and the architecture of an extended real-time multidatabase system, named RT-Panorama is given. An XML-based Real\|Time Data Model (XRTDM) is introduced as the common data model for RT-Panorama. The real-time message processing mechanism corresponding to time constraints in RT-Panorama is also presented.