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Model Driven Architecture ( MDA ) is a new software development framework proposed by the Object Management Group ( OMG ) . Different from the traditional software development , MDA model , using the model to guide the design, development and maintenance of the system . It will model and technology separation , reducing the difficulty of software development , improve the efficiency of software development . With the improvement in the level of development of information technology and social information , more and more types of information system applications , application environments have become increasingly complex , increasingly high requirements for interoperability between different platforms . Combined with the idea of ??SOA , we design to achieve a goal-oriented heterogeneous platforms MDA system , it can be used to achieve this complex application environment of system development . In this paper, starting from the basic theory of the analysis of MDA , MDA modeling techniques and model transformation technology . On this basis , the application of e-government , the paper mainly studies the following three aspects : First, based on the target operating business modeling technology , business objectives in the zero yards Portal platform PIM model , and define the basic elements of the PIM element model . Secondly, according to the characteristics of e-government in the target application system architecture based on heterogeneous platforms , PSM component model for heterogeneous target platform . Finally, it proposes a system framework for heterogeneous target platform MDA platform , Design and Implementation of the platform model conversion module , bridge module and application integration module , and to study the model and code synchronization mechanism .
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