A use case diagram is a graphical depiction of a user's possible interactions with a system. A use case diagram shows various use cases and different types of users the system has and will often be accompanied by other types of diagrams as well.... Wikipedia
Mar 22, 2019 · 用例图(Use Case Diagram) 是用来显示一组用例、参与者以及它们之间关系的图。它描述了用户希望如何使用一个系统。通过用例图可以知道谁是系统相关的 ...
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快速实现不同用户与系统的互动可视化. 即使是最复杂的用例图,使用creatly的用例图工具也能毫不费力地绘制出来。智能形状和连接器,预设的样式选项,加上创建,以及多种 ...