6.7.2 - Provide Driver Personal Security DFD
This DFD shows the processes that make up the Provide Driver Personal Security facility within the Provide Driver Personal Services function. The processes enable the driver to call for emergency services in the event of an incident.The key points about the facility are as follows:
- Driver has only to initiate emergency message building process;
- Output of messages provided through the driver advisory message interface.
There are two processes in this DFD:
a) Build Driver Personal Security Message (6.7.2.1)
b) Provide Driver In-vehicle Communications Function (6.7.2.2)
These processes must be implemented together. Process (a) supports the driver’s ability to call for emergency services in the event that the vehicle is involved in an accident, or an incident occurs to which the driver wishes to summon the emergency services. In both cases only one input is required and all output is passed through process (b) to the Provide Emergency Service Allocation facility - see DFD 5.1. The emergency message received in acknowledgment by process (b) is sent to the Provide Traveler Services in Vehicle facility - see DFD 6.7.3 for output to the driver. The store containing the vehicle identity will be set up by the manufacturer.
DFD: 6.7.2 - Provide Driver Personal Security
Parent DFD: 6.7 - Provide Driver Personal Services
PSpecs in this DFD:
- 6.7.2.1 - Build Driver Personal Security Message
- 6.7.2.2 - Provide Driver In-vehicle Communications Function
