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Domain Driven design(DDDesign) is not the same Model Driven Architecture(MDA). Although The root of both DDDesign and MDA is the same and it is Model Driven Engineering and also both of them aim to solve the problem of converting a 'pure' problem domain model into a full software system. But there are some differences.

Domain Driven Design concentrates on Modeling and solving the Domain problem by Capturing the model from the Ubiquitous language. it is about modeling a domain of knowledge with a high level of abstraction and its focuses are on domain logic and tries to keep the design as much close to the real world. In DDDesign you create the model with the Ubiquitous language so you should understand the business without any technical issues. In another side, model forms the ubiquitous language of DDDesign which explains the domain in a simple form and it's kinda a backbone of DDDesign.

But Model-driven architecture is an approach to building the model of the system. As I mentioned MDA is a kind of domain engineering too. A model is just some taken classes, methods and ... from the problem domain. MDA provides you to use multiple standards such as UML. 

 

but you know it doesn't stop there, I don't know more than these two paragraphs about differences of DDD and MDA! please let me know more about these two architectures and differences by comments, thanks...