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异构信息共享交换平台的体系结构分析与设计
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摘要
本文主要讨论了异构数据库信息共享的技术。首先分析了国内外在异构数据库信息共享技术的发展成果,提出系统的体系结构应遵循CORBA(Common Object Request Broker Architecture 公用对象请求代理体系结构)标准,按照多目录数据库技术保存异构数据源各结点信息,采用基于CSCW(Computer Supported Cooperative Work 计算机支持的协同工作)的异构数据库数据群体协同和并发控制技术,按照XML的规范制定数据库互操作的接口标准框架。接着,从制定异构数据库互操作的标准和规范、基于分布式异构环境的共享数据库建模、基于多目录数据库的异构共享、基于CSCW的异构数据库数据群体协同并发控制、 基于分布式异构环境的多层B/S、支持常用网络通信协议和服务模式的异构数据库数据流量控制、支持常用网络通信协议和服务模式的异构数据库安全控制等几个方面来考虑异构信息共享交换平台体系结构的设计工作。最后提出了一个基于Web的异构数据源集成模型。
This thesis is mainly a discussion on information share technology of the heterogeneous database. Firstly, analysis is made on the development of information share technology of the heterogeneous database system at home and abroad. It is proposed that the system architecture should comply with CORBA (Common Object Request Broker Architecture) standards and every heterogeneous information source should be stored according to the multi-directory database technology. Data group coordination and concurrency control technology of the heterogeneous database based on CSCW(Computer Supported Cooperative Work)are employed and the establishment of standard framework for database inter-operational interface should go by XML. Secondly, the designing of architecture for the shared system of heterogeneous database is approached from the following perspectives: the standards for the establishment of heterogeneous database inter-operation, the establishment of the model for shared database based on distributive heterogeneous environment, the heterogeneous sharing based on multi-directory database, data group coordination and concurrency control of heterogeneous database based on CSCW, multi-layer B/S based on distributive heterogeneous environment, the control of data flow in heterogeneous database in support of the commonly-used internet communication protocols and service patterns, and the security control of heterogeneous database in support of the commonly-used internet communication protocols and service patterns. Lastly, a proposal is made for an integrated model of heterogeneous data source based on Web.
引文
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