An XML-based Multi-Version Metadata Management System —It’s Storage, Query and Dynamic Generation of Web Interfaces

• Main Authors: Tsung-Te Lin, 林宗德
• Other Authors: Hsueh-Chi Shih
• Format: Others
• Language: zh-TW
• Published: 2004
• Online Access: http://ndltd.ncl.edu.tw/handle/98903834493410980697

碩士 === 國立雲林科技大學 === 資訊管理系碩士班 === 92 === Metadata provide with the functions of retrieving and utilizing of electronic resources. The customization of metadata needs numerous trying and finding out. Metadata change every time, user interfaces and metadata database should change accordingly. Frequent user requirement changes often lead to unexpectedly high software development and maintenance costs. Our attempt in attacking the problem started with the metadata systems. The aim is to enable the rapid change of the metadata system in a cost effective manner so that user requirements may be fulfilled in spite of the frequentness of these changes. The proposed architecture centers on the metadata. End users can change the metadata through a user-friendly maintenance interface. The metadata system will change accordingly automatically, without any manual intervention in code modification. The metadata management system allows new version metadata and old version metadata to coexist. Users not only can view the newest version metadata, but also can view older version metadata. About performance evaluation, the study evaluates the querying and updating performance of XML documents respectively by diverse order encoding. The architecture has been implemented in an online metadata system and achieved its goals successfully.