Teaching XML Data Type Definition: A Visual Method

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Journal of Computing Sciences in Colleges


XML is the standard for data exchange on the Internet. Database researchers have been investigating XML as a database wrapper and mediation medium, using XML to describe Web resources, storing and indexing XML in traditional database systems, understanding the interaction of data type definitions (DTDs) with constraint and typing mechanisms, and designing query languages for XML. Literature has found that approximately half of the XML documents available on the Web do not refer to a schema. In this paper, we describe a visual method to convert XML document to valid DTD schema with accuracy, conciseness and speed.