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Unified Modeling Language Reference Manual, The, Second Edition by Grady Booch, Ivar Jacobson, James Rumbaugh

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call

To invoke an operation or a behavior.

See also action, call trigger.

Semantics

A call is an action that invokes an operation on a target object. A call supplies actual values for the parameters of the operation. Each value must be compatible with its corresponding parameter; that is, it must be of the same type or of a descendant type. If the operation has default parameters, they may be omitted from the call and the default values will be automatically supplied. The call operation action has the operation as a static parameter of the action and has run-time input values for the target object and arguments.

Information about the call, including the argument values and, for a synchronous call, information sufficient to return control to the ...

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