Research And Implementation Of Cross - Application Data Matching And Exchange Method Based On

Cloud computing,a next generation computing model in IT industry attracts attentions for its convenience,low cost,high scalability.Lots of enterprises provide their own cloud computing services which give users storage and computing capabilities of enterprises’ cloud platform. Now a kind of cloud platform which pays more attentions on application integration is preparing,the cloud platform provides not only storage and computing capabilities to users, but also maximizes the integration ability of cloud platform,it integrates more third-party applications and services to provide more abundant functions.However,in the integration phase,the key problems are that the platforms and services provided by third-party are different,and it means that data could not compatible.The thesis is constructed in data exchange system in PaaS platform,and combines the features of isomerous data,adopts data standardized method to achieve data exchange.The thesis analyzes the key problems in the process of present cross-application isomerous data exchange,different data model matching and exchange,we focus on getting mapping relationship between relation schema and ontology,use XML schema to represent relation schema and construction in universal XML schema. We propose a semiautomatic matching algorithm between relation schema and ontology-RS2 O algorithm,and give SF and RS2 O achievements and combining the problems in schema matching and data exchange in the services between applications provided in subscription way.The algorithm reduces the complexity and degree of coupling of schema matching in data exchange and reduces the work in the traditional schema matching.We present a method of indirect schema transformation using XSD figure.It transforms database data to XML document while keeping semantics in the relation schema and related restriction.We design a universal XML schema using in exchanging data,the schema expresses the definition of relation database schema in soundness semantics and the related information in the following exchanging. In the end,the thesis achieves a data exchange system,and the procedure of the system is described as follows.First,the relationship database is performed after pattern extraction and subject matching,we use the mapping results to normalize the elements in the relation pattern,then use designed XML pattern as the carrier to make relation pattern after normalization be expressed the form of XML Schema,exchange and share the data by the publish subscription module in the system.