In sequence diagrams, you can move a message across other messages
and interaction fragments on the same lifeline or on another lifeline to reorder
the sequence the messages occur. After you reorder a message, the message
number automatically indicates the updated position on the lifeline.
You must have a sequence diagram open that contains at least two lifelines
with messages.
- To move a message on the same lifeline, right-click a message;
then click Select Message Set.
- Drag the message up or down to move the message to the new location. The grid guideline indicates where the message will be located in the
diagram.
Note: To reconnect a message to a different lifeline, click a
message handle and drag it to another lifeline. The message is reconnected
to the new lifeline.
Restriction: - You cannot directly reorder a skewed asynchronous message. For the message
renumbering to occur, you must move the other messages around it to change
the skewed order.
- You cannot change the order between a send message and a return message.