There are situations when an object might be in a paused state (example sleeping thread), in this case it would be good if this can be modelled as a temporary stop in the lifeline with a possibility to resume/awake it later on (either by signal or by itself).
There are situations when an object might be in a paused state (example sleeping thread), in this case it would be good if this can be modelled as a temporary stop in the lifeline with a possibility to resume/awake it later on (either by signal or by itself).