You design an activity that invokes a One-Way service operation using an <<Invoke>> business process implemented by a One Way operation and with an Invoke Operation action type.
The Message mapping property of the Invoke operation action corresponds to the invoke variable defined in the Sybase WorkSpace Business Process service interaction. If you click the New button beside the Message mapping box, you create a variable with the same name as the received message.
You can associate one correlation key to the <<Invoke>> activity.