一种多自治域层次互操作模型的系统框架

A System Framework for Multi-Domain Hierarchial Interoperability Model

数据互操作是信息集成领域需要解决的关键问题。联邦数据库和多数据库是解决分布式异构环境中多个数据源的集成与互操作的两种方法,但它们各有优缺点。完全的集中不能保证局部系统的自治,全部的分散又不能保证系统之间的共享和互操作。在分析联邦数据库与多数据库特点与差异的基础上,提出了一种多自治域的层次互操作模型MDHI,通过对Panorama多数据库系统进行扩展,给出了一种基于WebService的PanoramaWebOne系统框架。这种框架既满足了局域范围内的集成和处理效率,又提供了一种集成广域范围内多种异构数据源的方法,更加符合当前实际应用的需要。

Data interoperability is one of the key issues of information integration.Federated database and multidatabase are the two methods to solve the problem of integration and interoperation among multiple data sources in distributed and heterogeneous environment.But they both have different relative merits.It can't ensure the autonomy of local systems when hiring complete centralization of management ,while data sharing and interoperation can't be achieved when using total separation.This paper firstly analyzes the characteristic and differences between federated database and multidatabase and presents a multi-domain hierarchical interoperability(MDHI )model.It also gives a framework for Panorama Web One system based on Web Service by extending Panorama multidatabase system.This framework can not only integrate and process data in local area efficiently,but also provide a method to integrate multiple heterogeneous data sources in wide area.It will satisfy the present real application requirements better.