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4/22/2009
[AD]网店推介——迪士尼品牌之儿童文体休闲用品专卖 :)
乙丑仲春,一友涉足网络销售,专营迪士尼品牌之儿童文体休闲用品。虽因开业之初,货品尚难完备,然样式美观、质量可靠,且价位为网上最低
网店URL:
http://shop57583914.taobao.com
一心诚待八方客,万维广结四海宾
欢迎惠顾!
4/8/2009
关于Use Case
UML中的Use Case似乎是直接从需求分析的结论中推导出来的、非常粗略的系统功能示意图。事实上,从我目前所查阅到的所有资料看来,从一套完备的UML图推导出可运行的系统的工作也没有Use Case什么事情。Use Case是从最终用户的角度对系统功能模块的最粗略的表述,它对其它后续阶段的各个UML图的设计有一定的参考价值。
Matrix平台具备对一个系统的任何一个层面进行描述的能力,我们可以将Use Case看成是系统的一个模糊的表层层次,并将这个层次与更加精确的层次衔接起来...
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