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Data Analysis and Knowledge Discovery  2020, Vol. 4 Issue (1): 76-88    DOI: 10.11925/infotech.2096-3467.2019.0791
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An Evolutionary Schema for Metadata Description
Xuhui Li1,2(),Tao Yu1,Ting Li1,Yiwen Li3,Jinguang Gu4
1School of Information Management, Wuhan University, Wuhan 430072, China
2Center for Studies of Information Resources, Wuhan University, Wuhan 430072, China
3College of Computer Science and Electronic Engineering, Hunan University, Changsha 410082, China
4College of Computer Science and Technology, Wuhan University of Science and Technology,Wuhan 430065, China
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Abstract  

[Objective] This paper proposes an evolutionary schema for metadata description, aiming to address the frequent changing of schema for information system applications.[Methods] First, we summarized related research and formalized the structural description of the conceptual schema. Then, we summarized the common forms of conceptual schema evolution by combining schema structures. Finally, we determined the evolution schema structure based on the normal model.[Results] This paper established an evolutionary mechanism for metadata description and the ENM (Evolutionary Normal Metadata) model.[Limitations] This paper is only a preliminary study. More in-depth discussion is needed on the theoretical nature of structural expressions of normal conceptual schema.[Conclusions] The proposed method has strong abilityin the concept description of semantic features.

Key wordsMetadata Description      Schema Evolution      Schema Description     
Received: 03 July 2019      Published: 14 March 2020
ZTFLH:  G203  
Corresponding Authors: Xuhui Li     E-mail: lixuhui@whu.edu.cn

Cite this article:

Xuhui Li,Tao Yu,Ting Li,Yiwen Li,Jinguang Gu. An Evolutionary Schema for Metadata Description. Data Analysis and Knowledge Discovery, 2020, 4(1): 76-88.

URL:

http://manu44.magtech.com.cn/Jwk_infotech_wk3/EN/10.11925/infotech.2096-3467.2019.0791     OR     http://manu44.magtech.com.cn/Jwk_infotech_wk3/EN/Y2020/V4/I1/76

Teaching Relationship Attribute Figure
语义特征描述

概念模式
关系模式 对象模式 XML模式 正规概念模式
概念属性出现描述 聚集 聚集、多重 聚集、选择、多重 聚集、选择、多重
概念属性扩展 不支持 支持 支持 支持
概念属性结构限定 限定属性出现、属性个数 限定属性出现、属性个数
相关概念分离 不支持 不支持 不支持 支持
一般概念泛化 不支持 不支持 不支持 支持
Metadata Description Mechanism
Teaching Relationship Figure
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