在用例的帮助下你可以建模应用程序的功能并且获得所需的条件，于是你可以有效设地计系统并且缩短开发周期。
Because you are able to model application functionality and help capture requirements with use cases, you are able to design your system more efficiently earlier in its lifecycle.
组件技术和面向对象的采用使得程序代码的开发效率和质量提高、开发周期缩短、并且可以减少了后续开发和后期的维护工作量。
With the application of component technology, the efficiency and quality of the development is greatly improved and the work of maintenance is reduced.
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