Xml-based Data Conversion

In the e-Business, the business data is exchange among the enterprises. The formats of these business data are different due to the enterprise's scale and ability. How to transmit such data among the enterprise is one of the key problems in the e-Business. Since XML is rapidly emerging as a standard for exchanging business data on the Internet, it is inevitable for the enterprises to transform the original business data into XML data. XDocHub system provided a integrated frame to receive, transform, transmit and manage the XML documents. This system shielded the communication diversity and the data format difference among the enterprises.Since XML data is semi-structured data and the business data in an enterprise is structured data or non-structured data, the key to the transformation of XML document and other format data is how to build the structure mapping between them. In this paper, we analyzed the present algorithms and models on transformation of XML document and other format data, presented an approach based on DTD Element-Tree. In this approach, the Element-Tree was used to describe the structure of an XML document, and the structure mapping between the XML document and the other format data was built based on the Element-Tree, which was used to complete the data transformation.The XWrapper was a transformation system on the XML document and the relational database data, which adopted the Element-Tree approach. The system generated the Element-Tree of a DTD, and used the mapping between XML document elements and columns in the database provided by the user to transform the XML document and data in the database based on the Element-Tree.The transformation between XML document and non-structured data such as text file and OCR data were discussed in this paper too.