基于拨号网络的分布式数据一致性维护组件的设计与实现

【作者】 王涛；

【导师】 刘润彬；

【作者基本信息】 大连理工大学 ， 计算机软件与理论， 2002， 硕士

【摘要】 本文以为大连市计划生育委员会开发研制育龄妇女管理信息系统中所遇到的实际情况为背景，结合了分布式数据库的相关理论、计算机网络技术和三层次结构计算模型，根据实际需要设计了一个基于拨号网络的分布式数据一致性维护的中间组件。该组件应用在拨号网络中，实现了多数据库系统间的相同数据集的数据一致性维护功能，为育龄妇女管理信息系统的实现和国家的生育决策提供了有力的技术支持。本文首先分别阐述了分布式数据库理论基础、计算机网技术和三层次结构计算模型，然后对该组件的客观需求和实际应用环境进行了分析，讨论了实现该模型的数据库设计方法和通讯子程序的设计方法，最后详细阐述了客户通讯子程序的实现技术细节。本组件的设计与实现的意义是为国家生育政策提供决策支持和技术保证。本人在整个项目中参与了整个系统应用模型的总体设计，设计了分布式数据一致性维护的通讯子程序和相关数据库结构的设计，实现了通讯子程序的客户端程序。更多还原

【Abstract】 A practical intermediate module that implement the maintenance of the distributed data consistency based on the dial network, which is used to solve the problems when developing a woman management information system for family plan committee of DaLian, is discussed and designed in this paper, combined with the correlative theory of DDBMS, computer network and 3-Tiered computation model. This module is used in dial network system and the mechanism of the maintenance of the data consistency in databases is implemented. It takes the powerful technical support to the implementation of the woman management information system and the national bearing decision-making. First of all, the basic theory of DDBMS, computer network and 3-Tiered computation model is expatiated in this thesis. Then the environment where this module is applied and the impersonal requirement are analyzed. At last, the technical detail of implementation of the client side of the communication program is expatiated particularly. The signification of the design and implementation of this module is that this module takes the decision-making support and the technical assurance to the national bearing decision-making. In the project I participated in the design of the whole application model and designed the communication program of the maintenance of the distributed data and the relative data structure and implemented the client side of the communication program.更多还原