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I am learning the basics of using communication diagrams and I struggle to understand how to change the direction of my messages-arrows? I create a link between to lifelines but the no matter how i initiate the link the message direction is the same.
How to change the source and target of a message in a communication diagram?
Product: Astah Professional
Once the message is created, you cannot change its direction. So when you will have to specify the direction as you create a message.
(1) Choose Message in the tool bar
(2) Click on the diagram
(3) When you move a mouse, a red arrow appears. Do the second click when the arrow is pointing to the direction you want
Here's the short clip showing this step
Hope it helps.