哪些箭头应该与注册和登录有关？
Which arrows should be in relation between registration and login?
注册和登录应该对应哪个箭头？注册或恢复密码后用户可以去登录。在我的图表中应该是 register/recovery 之间的箭头来登录？如果是，哪个？指向或来自登录的箭头？
register/recovery和登录之间应该没有关系。
用例图不用于显示这些类型的依赖关系。
还有
http://www.uml-diagrams.org/use-case.html#association
州 "Two use cases specifying the same subject cannot be associated since each of them individually describes a complete usage of the system."
注册和登录应该对应哪个箭头？注册或恢复密码后用户可以去登录。在我的图表中应该是 register/recovery 之间的箭头来登录？如果是，哪个？指向或来自登录的箭头？
register/recovery和登录之间应该没有关系。 用例图不用于显示这些类型的依赖关系。
还有 http://www.uml-diagrams.org/use-case.html#association 州 "Two use cases specifying the same subject cannot be associated since each of them individually describes a complete usage of the system."