b116d9ce_ltimodal_Interaction_Use_Cases__Event_Handler
[User Action/External Input] User presses button on steering wheel [Action on Device] Service is initiated and GPS satellite detection begins [Event Description] HTTP Request to app server [Resulting Action] Welcome prompts are played. Authentication dialog is initiated (may be initiated via speaker identification or key identification). [Event Handler] 
App server returns initial page to device
Multimodal Interaction Use Cases