Even though SOA provides real contribution, it is not adequate to implement enterprise integration. There are still problems in the implementation of enterprise integration in SOA environment, they are 1) the absence of modeling language support, 2) the absence of guideline of the services implementation produced by services identification, and 3) service orchestration that uses only Web Services. Based on the consideration and comparison of some integration methods, MDA method from OMG is

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... n as a method to help dealing with SOA weaknesses. Model-driven based MDA method enables business level functionality to be modeled by UML language modeling that is separated from low level implementation (code level). Therefore, SOA used in MDA approach can be expressed using UML modeling language. This study proves that SOA-MDA method has been successfully used to perform analysis, design and implement of enterprise integration.