| Previous | UML Classes | Table of Contents | UML Packages | Next | 
   • 
   
               MessageEnd	    (from BasicInteractions	   ) on page 515 
               
   • 
   
               OccurrenceSpecification (from BasicInteractions	   ) on page 517 
               
   Description 
Issue 8784 -change references to message events 
   Specifies the occurrence of events, such as sending and receiving of signals or invoking or receiving of operation calls.
               A message occurrence specification is a kind of message end. Messages are generated either by synchronous operation calls
               or asynchronous signal sends. They are received by the execution of corresponding accept event actions. 
   Attributes 
   No additional attributes 
   Associations 
Issue 8784 - change type to Event, change description, and remove redefinition on event 
   • event : Event [1] The event associated with the message occurrence. 
   Constraints 
   No additional constraints 
   Semantics 
   No additional semantics 
   Notation 
   None 
   Changes from previous UML 
   New in UML 2.0.