What to do next
Note: To delay an asynchronous message, drag the asynchronous
message first horizontally and then vertically across existing messages
to the target lifeline where you want to terminate the message. You
can also create an asynchronous message without a behavior execution
specification.
Tip: To assign an operation to a
message in an existing diagram in the navigation view, click an operation
and drag it onto a message in the interaction frame. The operation
must belong to the target instance of the object or be visible to
and in scope of the operation in an object.