分布式信息共享平台框架体系和关键技术

为集成分散的铁路信息系统,实现信息共享,建立了分布式信息共享平台。设计了一个分层次、多要素综合的网络信息系统架构,并根据信息与应用的异域、异构、分布等特征,分别从事务完整性、网络交互协议、元数据动态导航、标准体系和管理体系等方面进行重点研究。该平台在现有交易中间件、Web中间件技术和应用服务器内部系统控制技术的基础上引入ODBC标准,以简单对象访问协议作为客户/服务器之间的交互方法。大量的实际应用表明,分布式信息共享平台可大大简化应用实现的复杂性,增强系统的模块化,提高应用的可靠性,具有较好的社会和商业应用价值。

Framework and key technologies of distributed information sharing platform

To integrate the existing distributed railway information systems and realize information resource sharing, a Distributed Information Sharing Platform (DISP) was developed. Firstly, a hierarchical multi-elements integrated framework of this platform was designed. According to such features of information and applications as hetero-domain, hetero-structure and distribution, the key technologies including transaction integration, network access protocol, metadata dynamic navigation, standard system as well as organization in DISP were researched emphatically. The DISP introduced Open DataBase Connectivity(ODBC) standard based on the transaction middleware technology, Web middleware technology and system control technology in application server. In addition, the Simple Object Access Protocol(SOAP) was adopted as interactive approach between customers and servers. A great deal of practical applications indicate that DISP greatly reduce the complexity of application's realization, modularize the whole large system and improve its reliability, consequently has a good social and economic benefits.