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研究生:林宗德
研究生(外文):Tsung-Te Lin
論文名稱:以XML為基礎之多版本後設資料管理—儲存、查詢與Web介面之動態產生
論文名稱(外文):An XML-based Multi-Version Metadata Management System —It’s Storage, Query and Dynamic Generation of Web Interfaces
指導教授:施學琦施學琦引用關係
指導教授(外文):Hsueh-Chi Shih
學位類別:碩士
校院名稱:國立雲林科技大學
系所名稱:資訊管理系碩士班
學門:電算機學門
學類:電算機一般學類
論文種類:學術論文
論文出版年:2004
畢業學年度:92
語文別:中文
論文頁數:64
中文關鍵詞:多版本動態系統順序編碼效能評估後設資料
外文關鍵詞:Dynamic SystemOrder EncodingPerformance EvaluationMulti-versionMetadata
相關次數:
  • 被引用被引用:0
  • 點閱點閱:348
  • 評分評分:
  • 下載下載:32
  • 收藏至我的研究室書目清單書目收藏:4
後設資料有助於資源之檢索與利用,然而其客製化之過程往往需要許多的嘗試和摸索。每次後設資料綱要有所更動,使用者介面和後設資料庫便必須隨之改變。而頻繁的變更,經常會導致資訊系統的開發和維護成本高於當初所預期。為解決此問題,本研究由後設資料系統著手,嘗試在變動頻繁的情況下,仍然能夠以極低的成本快速地變動後設資料系統。本研究所提出的系統架構,以後設資料為核心,當使用者透過親和的維護介面自行修改後設資料綱要後,Web介面和後設資料庫就會自動跟著改變,不需要系統發展者以人工方式修改任何程式。由於本研究的後設資料庫允許新舊版本並存,使用者不但可以查看最新版本的後設資料,也可以查看過去版本的後設資料,Web介面會自動配合使用者的選擇而變動。在系統效能方面,本研究亦針對將XML文件儲存入關聯式資料庫時,採用不同的順序編碼所造成的影響,進行查詢與更新效能的評估。這個系統架構已成功地應用於運作中的系統,達到快速回應變動需求和降低系統變動成本的目的。
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.
一、簡介
1.1 研究背景與動機
1.2 研究目標
1.3 貢獻
1.4 論文架構
二、文獻回顧
2.1 快速地開發使用者介面
2.2 彈性的資料庫結構
2.3 XML版本管理
三、系統架構概觀
四、後設資料綱要描述規範
4.1 XML Schema
4.2 Web介面後設資料
五、使用者介面產生器與JAVA SCRIPT
5.1第一類,沒有值
5.2第二類,沒有限制值的範圍
5.3第三類,有限制值的範圍
5.4第四類,相依的值
5.5第五類,呼叫外部程式
5.6第六類,複雜多值
5.7 新增、修改和查看介面的產生
六、資料庫設計與版本管理
6.1唯一路徑編碼
6.2版本管理
6.3 資料的儲存
6.4 資料的讀取
6.5 搜尋
6.7 後設資料綱要的變動
七、後設資料綱要管理介面
八、不同順序編碼方式之效能評估
8.1 評估目標
8.2 實驗對象
8.3 評估標竿
8.4 實驗設計
8.5 實驗結果
九、結論
參考文獻
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