Research Of Adaptive Heterogeneous Data Integration System Based On Web Service

Because of the fast development of Internet and the extensive application of information technique to each kind of fields, many enterprises have continuously developed their own information management systems which have heterogeneous functions. These systems usually worked respectively and independently which were called 'information isolated islands', so enterprises need to integrate these heterogeneous data in heterogeneous existing systems, and process them together, in order to support the enterprises' decisions. Developing a heterogeneous data integration system is a valid way to resolve these problems, therefore, the research, design and development of integration system of heterogeneous data have been the concentrated research point of current industry and academic fields.The research on the integration of heterogeneous data has developed since the 70's in the last century, now people gradually concentrate their attention to the semantic heterogeneous and the extensibility of the integration. This paper uses Web Service and the XML technique to develop a integrated platform of heterogeneous data which has adaptability successfully, this platform has carried out the automation of the development of integration system of heterogeneous data in a certain extent. In allusion to semantic heterogeneity and unskillful etc. in the developing of integration system of heterogeneous data in modern enterprises, this paper puts forward a new applied solution, which can increase, delete or modify data source in integrated systems. What this paper mainly studies are shown as follows:1. Analysis and summarize the problem which needs to be resolved in the integrated process. Put forward corresponding solutions to those problems through studying heterogeneous data integration principles, methods.2. On the base of studying a great deal of traditional method and related technique of language matching, this paper put forward a kind of integrative semantic matching project, and by combining traditional methods and advanced techniques, this paper divides concept similarity in data integration to three weights: name similarity, description similarity and instance similarity, three kinds of similarity will be synthesized to the concept similarity of the vocabulary, and this raised the accuracy for matching effectively.3. Research the characteristic of related data source and data schema and query decomposition method in integration process, use XML Schema to express data schema, use Web Service technique to carry out the operation between each other, design function module with adaptability, carry out the automatic or semiautomatic change of global data schema when local data schmes change in integrated system of heterogeneous data.4. Combined with an application project, design the frame of the integreted platform of heterogeneous data with adaptability, present some interfaces and functions of the main modules, realize the application of the research on adaptive heterogeneous data integration based on Web Service.