Reordering messages

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 message. After a reorder, the message number automatically indicates the updated position on the lifeline.

To reorder a message:
  1. Open a sequence diagram that contains at least two lifelines with messages.
  2. In the interaction frame, click a message and move it up or down on a lifeline across other messages and interaction fragments. A reorder occurs and the moved message appears in the new location. The messages and interaction fragments that were below the reordered message maintain their original position.
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.

Parent topic: Creating messages in sequence diagrams

Related concepts
Messages

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