R1160

A target Pin can only be owned by a CallOperationAction or a SendSignalAction.

The target Pin is an InputPin that represents the target object to which the request or signal is sent. Only CallOperationActions or SendSignalActions can own such a Pin.

This rule is triggered when the "Self" property of a Pin is checked and the owner of the Pin in question is neither a CallOperationAction nor a SendSignalAction.

This property can be modified through the "Element" view when the Pin is selected.