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MessageEvent (from Communications ) on page 463
A SendSignalEvent models the sending of a signal.
No additional attributes
• signal : Signal  The signal associated with this event.
No additional constraints
A send signal event specifies the sending of a message to a receiver object. The send signal event may result in the occurrence
of a signal event in the receiver object (see
Common Behaviors on page 437), and may
consequentially cause the execution of a behavior by the receiver object. The sending object will not block waiting for a
reply, but will continue its execution immediately.
Changes from previous UML
New in UML 2.0.