The USING clause provides an ESCAPE option to overcome the issue described in Case 1.
using子句提供了一个ESCAPE选项来克服用例1中描述的问题。
Some of the case studies described in the first two parts are industry specific.
前两个部分中讨论的部分案例研究是特定于行业的。
By contrast, a system analyst is interested in the functionality described in the use-case diagram and less interested in the details of construction and deployment.
相反,系统分析人员对用例关系图中描述的概念感兴趣,而对构造和部署的细节不太感兴趣。
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