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Visualization of XML conceptual schema recovered from XML schema definition

Joseph Fong (Department of Computer Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong)
San Kuen Cheung (Department of Computer Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong)
Herbert Shiu (Department of Computer Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong)
Chi Chung Cheung (Department of Computer Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong)

International Journal of Web Information Systems

ISSN: 1744-0084

Article publication date: 1 November 2005

227

Abstract

XML Schema Definition (XSD) is in the logical level of XML model and is used in most web applications. At present, there is no standard format for the conceptual level of XML model. Therefore, we introduce an XML Tree Model as an XML conceptual schema for representing and confirming the data semantics according to the user requirements in a diagram. The XML Tree Model consists of nodes representing all elements within the XSD. We apply reverse engineering from an XSD to an XML Tree Model to assist end users in applying an XML database for information highway on the Internet. The data semantics recovered for visualization include root element, weak elements, participation, cardinality, aggregation, generalization, categorization, and n‐ary association, and which can be derived by analyzing the structural constraints of XSD based on its key features such as key, keyref, minOccurs, maxOccurs, Choice, Sequence and extension. We use the Eclipse user interface for generating a graphical view for XML conceptual schema.

Keywords

Citation

Fong, J., Kuen Cheung, S., Shiu, H. and Chung Cheung, C. (2005), "Visualization of XML conceptual schema recovered from XML schema definition", International Journal of Web Information Systems, Vol. 1 No. 4, pp. 209-222. https://doi.org/10.1108/17440080580000094

Publisher

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Emerald Group Publishing Limited

Copyright © 2005, Emerald Group Publishing Limited

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