Research Of An XML-based Distributed Data-eXchange Middleware (XDDX)

With the rapid development of Internet, E-Commerce, the business pattern of Information Era, has grown dramatically, especially does the B2B pattern. In B2B, some enterprises make up a supply chain, in which these nodes could exchange data peer to peer.Those traditional software or Web tools cannot fulfill the task of data-exchange any longer. At present, although some technology, such as distributing object technology and ODBC, could fulfill the mutual operation of data, they do not satisfy application demands due to the high cost or stubborn demands of environment. Considering the diversity of systems and data structures, also taking the cost into account, this paper studied the characteristics of middleware and XML, then provided a solution of an XML-based Distributed Data-eXchange middleware (XDDX).The main work and conclusion as follows:5) Data-eXchange Model was put forward——The kernel content of Data-eXchange Model was eXchange Data Format (XDF) composed by metadata. 6) Transforming Rules based on ontology were defined——This bidirectional transforming rules based on ontology were derived from Artificial Intelligence and Graph Theory. 7) Mathematic Functions of XSLT were extended——This extension of XSLT embodied the extensibility of XML. Both operator functions and statistics functions were extended. 8) XDDX was framed——The issue of XML-based Distributed Data-eXchange was explored, from XDDX system design, function definition, processing flow design and XDDX simulation.To conclude, fundamental technology of Middleware and XML were studied, Data-eXchange Model was put forward, Transforming Rules based on ontology were defined, Mathematic Functions of XSLT was extended, XDDX was framed and simulated, and finally the conclusion and prospect were gave out.