In the software engineering world, modeling has a rich tradition, dating back to the earliest days of programming.

追溯到程序设计的最早的日子，在软件工程的世界里，建模有着悠久的传统。

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Modeling has had a major impact on software engineering, and it is critical to the success of every enterprise-scale solution.

建模已经在软件工程中起到了较大的影响，并且它对于每一个企业级方案的成功都是至关重要的。

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Software requirement modeling and use case technology are hot points of research to the software engineering. Use case is the key technology for organic requirement in UML.

需求建模和用例技术是软件需求工程研究的热点，用例是UML中组织需求的重要技术。

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