The Research And Realization Of XML Document Management System

How to express all the kinds of information in our developed software system isvery important in considering the issues of variable format of amanuenses, real timeinformation, system's flexibility, extensibility and information sharing andexchangeability. In this paper, embarked on the demand of the software, XML isapplied to solve the above problems. XML data template is designed for many kinds ofdifferent format amanuenses and information. Then according to the flexibility of XMLdata template and the self-description of XML data, the programming interface of thesystem is greatly simplified to speed up the information communication and sharingamong subsystems.Information will flow through the various elements and the seats of the system, andwill be repeatedly processed and extracted by the corresponding process. Obviously, itbecomes an important component of the system about how to handle the XML forms ofamanuenses and other information. In order to solve such fundamental questions asinformation integration, information extraction, and format conversion, using XMLinterpreter and DOM interface, a modular, extensible and efficient XML DocumentManagement System is designed and implemented.Apart from the method, another important issue is to solve the storage problem ofXML document. The basic problems of XML processing are data storage, the query andupdate of XML data based on certain storage mechanisms. At present, there are threekinds of storage methods, which are based on the file system, the semi-structural datawarehouse and the database management system. Compared with all the possible formsof XML storage, this paper adopted the solution based on the relational databasemanagement system. Practice has shown that this is a technically feasible way.This paper aims to the new problems caused by the XML data processing inrelational database. The storage mapping from the XML documents to the relationaldatabase is studied deeply, other issues including indexs construction and querymethods of XML document in relation database, and the design and implementation ofXML document management system are also disscussed. This system provides theunified data format and accessing interface for hetergeneous documents. A schema isproposed to store XML documents into relational database, and the completemechanism of XML documents storage is established based on relation database. On thebasis of this schema, the designed index construction and query techniques greatlyimprove the XML documents processing efficiency.