Adopting the object-oriented design method, the detail design of some modules is given, which includes use case design, concept model and sequence diagram.

采用面向对象的设计方法，对部分模块给出了详细设计过程，包括用例设计、概念模型和顺序框图。

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The elements of Use Case Design in RUP

RUP中用例设计的元素

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Use Case design Step 5: Describe design mechanisms.

用例设计第5步：描述设计机制。

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The limitations of responsive design in adapting for use case and context means that it is more hindrance than help in mobilizing distinct, device-specific experiences that impart user value, such as more complicated web applications.

FORBES: Mobile Apps: The Trouble With Using 'Responsive Design'

Beyond device-specific content display, the two other pieces to consider when designing your mobile strategy are use case and context, two realms in which responsive design does not contribute meaningfully.

FORBES: Mobile Apps: The Trouble With Using 'Responsive Design'