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wholesale cheap fine jewelry PDA = Personal Digital Assistant Personal Data Processor.
model drivers (MDA) is a new methodology proposed by OMG. It is a framework based on UML and other industrial standards, supporting the visualization, storage and exchange of software design and models. Compared with UML, MDA can create machine -readable and highly abstract models. These models are independent of implementing technology development and stored in a standardized manner. Therefore, these models can be repeatedly accessible and automatically transformed into the deployment description of the outlines, code skeleton, test tools, integrated code, and various platforms. MDA uses modeling language as a programming language instead of more than just design language.
MDA integrates a series of new trending technologies of IT technology in a new way. These technologies include component-based development (component-based), design patterns (Design Pattern), middleware (), explanatory rules (), abstract (), multi-layer system (Multi-Tiered System) enterprise application integration () and Multi-timed system () and Multi-time Design by Contract. The emergence of MDA pointed out the solution in order to improve the efficiency of software development, enhance the portability of software, coordinated work and maintainability, and the convenience of documentation.
MDA is predicted by the object -oriented technology community as the most important methodology in the next two years.