An operation is an artifact that specifies the information required to invoke a flow, a terminal application, or a nonterminal application.
| Element: | Description: |
|---|---|
| Port type | The class to which the operation belongs. |
| Operation | The name of the operation and of the program to be invoked. |
| Input message | A reference to the input message of the program to be invoked. |
| Output message | A reference to the output message of the program to be invoked. |
| Faults messages | A reference to the faults messages (if any) of the program to be invoked. |