基于嵌套集合模型的电力文档管理系统的研究与开发

RESEARCH AND DEVELOPMENT OF POWER DOCUMENTS MANAGEMENT SYSTEM BASED ON NESTED SET MODEL

电力调度工作中需要管理大量的文档,这些文档层次分类结构变动频繁,以往所采用分类结构固定的文档信息管理系统越来越不能适应电力调度工作的需要。在研究嵌套集合模型基本结构和性质的基础上,将嵌套集合模型用于数据库中的文档层次分类结构的存储及管理,并提出了各类型文档在数据库的存储及管理方法。以此为基础的文档管理数据库作为服务器端的核心数据源,开发的基于C/S(客户端/服务器端)模式的电力文档管理系统已用于华东某地区电力调度中心,提高了管理工作的效率及水平。

In power dispatching process there are many documents to be managed. As the hierarchical structure of documents changes frequently, traditional paper documents information management system which has a fixed hierarchical structure is increasingly less meeting the requirement of the dispatching work. In this paper we first introduce the basic structure and properties of the Nested Set Model. Based on that, the model is then applied to the storage and management of the hierarchical structure of documents in database. The storage and management of documents in different types are also given. Using a documents management database based on those techniques as the core data source in the server,a C/S （client/server） model based power documents management system has been developed and is running in a certain power dispatching centre in East China, of which the efficiency and quality of management is improved.