The figure displays three flows that are described in the sections that follow the diagram: High-level Flow for sendData (Flow A), High-level Flow for startNotification and stopNotification (Flow B), and High-level flow for notifyDataReception (Flow C).

The modules marked with 1 in the diagram (generated based on the WSDL files) are: SendData (WebService), SendData (EJB), NotificationManager (Web Service) NotificationManager(EJB), Notification(Callback EJB), NotificationCallbackFactory.

The modules marked with 2 in the diagram (skeletons generated at build time) are: SendDataPluginNorth, NotificationManagerPluginNorth.