The timing diagram portrays lifelines across a period of time.
2
垂直线代表了序列图之中的时间,但是计时图使用水平线来代表时间。
The vertical axis represents time in sequence diagrams, but the timing diagram USES the horizontal axis to represent time.
3
Rational Soft ware Architect中现在支持UML规范中所描述的两个新uml图:交互概览图以及计时图。
Two new UML diagrams described in the UML specification are now supported in Rational Software Architect: the interaction overview diagram and the timing diagram.