Research And Implementation Of Heterogeneous Data Integration Platform Based On Model Driven

Nowadays the Information System is used in almost every trade in our society and play a very important role.With the development of InterNet it become possible that the imformation can be shared in Web.Almost every lage-scale,medium-sized and small company become more and more depending on IT.The Information Sharing change the working-way of people,the efficiency and collaboration of work between enterprises is promoted and strengthened through this way.But there is a problem,because former Information System was built independently in different way,the data and information between Information Systems is heterogeneous,so communication and Resource Sharing appers hard.The result is there appears a lot of single Information-Island.The Integration of Heterogeneous Data,integrating the inter and outer data source of a system,is the technology base of enterprise carries on resources sharing and realization Product Data Management(PDM),Enterpris Application Integration(EAI),Enterprise Resource Plan(ERP).Now,the isomerism data integration mainstream way is carries on the data exchange through the network.Realization system loose coupling integration,one of in which key technologies is realize the source data and the digital target information the different construction of data transformation.This article into further realizes isomerism data transformation of through the establishment source data and a digital target information Metadata to lay the foundation. Against metadata, based on the theme of this paper, a meta-data management and metadata management of a multi-dimensional framework. Metadata management is multidimensional that can be from different angles, according to the theme of metadata classification, and management from a different perspective and access metadata. Through the realization of this structure to complete the various metadata of the system. We rights management, the framework management, configuration management, and other documents as a framework composed of the basic modules to achieve, and the business-related portion of the expansion of the framework.The data of various construct internal and external one system could be integrated by Integration of heterogeneous data.Some important Enterprise-Application, such as PDM,EAI,ERP and so on,depend on the Integration very much.And generally Integration of heterogeneous data is achieved through the exchange of Web data.This kind of Integration is loose-coupling and one of key techenologies is the transformation of data of various construct between Source and Target.On the base of Metadata,this article present a kind of Data Integration techenology .Base on the united descript of DataModel,we may descript the Mapping Relation conformably and normally.So we can accomplish the transformation of data from Source to Target that is to say the integration between heterogeneous with the uniform exchange way by the means of loading the Mapping Relation. MDA(Model Driven Architecture)is a architecture cried up by OMG,it break the traditional Software Engineer way,the core of software development is Model and Model run through every stage of development, analysis, design, realization, deployment, maintenance and management.Appearance of MDA make the United Data Modeling mature.With the thinking of MDA this article introduce the logic construce of Data Dictionary that discprit the Data Model uniformly.At the same time on the MetaModel level of Data Dictionary and based Data Dictionary this article analyse the Mapping Relation between heterogeneous Data Models. Then on the base of the research of Mapping Relation ,this article show how to accomplish the Data Integration and apply this to the procession of oil exploration,and resolve some questions.In the process of oil and gas exploration, the exploration data collection, processing, storage, explained after the application form for the exploration and production results based on the provision of information. Exploration and production rely on large amounts of data, and produce large amounts of data, data management become the basic operations of exploration and production. The topics run by the idea of model-driven, for the exploration sector development of a data integration platform to support exploration and operations staff in the development of software can be customized to meet the exploration business needs. In the exploration business data environment, data sources, professional library, the main centre of the database structure used for a certain difference. In order to enable different systems between data sharing, the need for data between various database format conversion. Mapping data model describes the structure of the database between any two counterparts, this relationship is between the table and table, field and the field between the name of the control, it may also be a function of the transformation, such as Mosaic, the calculation. Mapping data model can be achieved data from the source database to database migration purposes, so as to achieve the purpose of data integration.