Overview

This Function shall be capable of providing the following facilities:

(1) The ability to monitor the status of the Vehicle that is providing the On-Demand Service.
(2) A HMI through which the Driver can exchange messages (voice and data) with the implementation functionality.
(3) The ability to include a separate interface through which information can be provided to Passengers including updates on the arrival times at their drop-off points.
(4) The ability to provide information about the status of the Vehicle and the number of Passengers to the implementation functionality and to maintain a record of how the Services have been delivered by the Vehicle.

Functional Requirements

(a) when the message for the demand driver data flow is received, output its contents to the On-Demand Service driver using the driver information data flow
(b) when the service instructions for demand driver data flow is received, output it to the On-Demand Service driver using the driver instructions data flow
(c) when the demand service arrival prediction data flow is received, output its contents to the passengers using the arrival prediction data flow
(d) when the message from vehicle data flow is received from the driver send its contents to the Implement On-Demand Service function using the message from demand driver data flow
(e) use the data flow the vehicle location data flow to determine its location and tag all messages to the Implement On-Demand Service function with this information
(f) continuously monitor for arrival of the passenger numbers and vehicle status data flows
(g) when either of the data flows in (f) arrives, send their contents to the Implement On-Demand Service function using the demand vehicle status data flow.

Diagrams

Parent Higher Level Function

• 4.7 Provide On-demand Services

Input logical dataflows

• fd.odsd-message_from_vehicle
• flds-on-demand_service_vehicle_location
• fv.odsv-passenger_numbers
• fv.odsv-status
• mpto_demand_service_arrival_prediction
• mpto_message_for_demand_driver
• mpto_service_instructions_for_demand_driver

Output logical dataflows

• mpto_demand_vehicle_status
• mpto_message_from_demand_driver
• td.odsd-driver_instructions
• td.odsd-information_for_driver
• tt.odsp-arrival_prediction

User needs