| 基于模式图的规范化XML模式设计 |
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| 引用本文： | 袁文翠,左万利.基于模式图的规范化XML模式设计[J].计算机应用研究,2006,23(4):204-207. |
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| 作者姓名： | 袁文翠 左万利 |
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| 作者单位： | 吉林大学,计算机科学与技术学院,吉林,长春,130012;大庆石油学院,计算机与信息技术学院,黑龙江,大庆,163318;吉林大学,计算机科学与技术学院,吉林,长春,130012 |
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| 摘 要： | 在给定关系模式的属性集及其函数依赖最小覆盖集的基础上，提出一种基于模式图的规范化XML模式设计方法。定义了模式图，在模式图中增加了Keys的描述信息，给出由函数依赖集构造模式图的算法。该模式图独立于具体的XML模式语言，经分析证明，所设计的模式满足XNF。
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| 关 键 词： | XML 模式图 XNF 函数依赖 模式设计 |
| 文章编号： | 1001-3695(2006)04-0204-04 |
| 收稿时间： | 2005-03-26 |
| 修稿时间： | 2005-05-20 |
Design of Normal XML Schemas Based on Schema Graph |
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| YUAN Wen cui,ZUO Wan li.Design of Normal XML Schemas Based on Schema Graph[J].Application Research of Computers,2006,23(4):204-207. |
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| Authors: | YUAN Wen cui ZUO Wan li |
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| Abstract: | Given attribute set and minimum cover set of functional dependencies over one relational schema, a new method for designing normalized XML schemas based on schema graph is proposed. It starts by defining a new data model called SG (Schema Graph), which contains information about Keys as its specifications and is independent of concrete schema definition language such as DTD (Document Type Definition) or XML Schema. Then an algorithm for constructing SG based on minimum cover of functional dependencies over relational schema is presented. Peculiarities of SG are analyzed, which shows that XML schemas derived from SG are in XNF. |
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| Keywords: | XML XNF |
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