Analysis & Design Of Architecture For Shared System Of Heterogeneous Database

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.