To draw a guard on a sequence diagram in UML 1.x, you placed the guard element above the messageline being guarded and in front of the message name.
UML 1 . x中,为了在一个序列图上画一个约束,你把约束元件放在约束的消息线上,消息名字之前。
2
For example, in our applications, the standard error message will be displayed in the messageline, just above the function key line in the lower part of screen.
例如,在我们的应用程序中,标准错误信息将显示在消息行中,正好在屏幕下部的功能键显示区之上。
3
In August, when she first realized she had a problem, she posted a message on a Yahoo Internet addiction group with the subject line: I have an Internet Addiction.