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One of the main aims of the MDA is to separate design from architecture. As the concepts and technologies used to realize designs and the concepts and technologies used to realize architectures have changed at their own pace, decoupling them allows system developers to choose from the best and most fitting in both domains. The design addresses the functional ([[use case]]) requirements while architecture provides the infrastructure through which non-functional requirements like scalability, reliability and performance are realized. MDA envisages that the platform independent model (PIM), which represents a conceptual design realizing the functional requirements, will survive changes in realization technologies and [[software architecture]]s.
Of particular importance to model-driven architecture is the notion of model transformation. A specific standard language for model transformation has been defined by [[OMG]] called [[QVT]].
== MDA tools ==
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