Showing message signatures

In sequence diagrams and communication diagrams, you can show operation signatures or message signatures of individual messages to visually represent communication in interactions.
You must have a sequence diagram or communication diagram open that contains messages.
To show an operation or message signature, in the diagram editor, right-click a message; then click Filters > Show Signature.
The operation signature or message signature is displayed in the name compartment.
Note: If the message has no arguments, the operation signature of the message is displayed. If the global preference Show Operation signatures instead of Message signatures is selected, the operation signature of the message is always displayed.
Related concepts
Messages in UML diagrams
Related tasks
Customizing the default settings for messages

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