7.2 - Provide Electronic Parking Payment DFD
The processes in this DFD are responsible for the Provide Electronic Parking Payment facility within the Provide Electronic Payment Services function. These processes transact the payments for parking lot charges either for current use by drivers, or as advanced payments by drivers and travelers.The key points about the facility are as follows:
- Drivers can pay parking lot charges without leaving their vehicles or stopping the vehicle;
- Drivers can also pay in advance for tolls and transit fares;
- Images of drivers making invalid payments are sent to the Provide Law Enforcement Allocation function.
There are 7 processes in this DFD, and one is itself a DFD:
a) Process Electronic Parking Lot Payment (DFD 7.2.1)
b) Produce Parking Lot Displays (7.2.2)
c) Obtain Parking Lot Violator Image (7.2.3)
d) Provide Driver Parking Lot Payment Interface (7.2.4)
e) Detect Vehicle for Parking Lot Payment (7.2.5)
f) Distribute Advanced Tolls and Fares (7.2.6)
g) Provide Traveler Card Interface for Parking (7.2.7)
The processes in this group provide all the facilities for handling both current and advanced parking lot charge payments from vehicles without stopping. They form a tightly coupled group that should be implemented in their entirety. However process (f) could be omitted if particular implementations are not supporting the advanced payments of parking lot charges, tolls, and transit fares.
DFD: 7.2 - Provide Electronic Parking Payment
Parent DFD: 7 - Provide Electronic Payment Services
Child DFDs:
PSpecs in this DFD:
- 7.2.2 - Produce Parking Lot Displays
- 7.2.3 - Obtain Parking Lot Violator Image
- 7.2.4 - Provide Driver Parking Lot Payment Interface
- 7.2.5 - Detect Vehicle for Parking Lot Payment
- 7.2.6 - Distribute Advanced Tolls and Fares
- 7.2.7 - Provide Traveler Card Interface for Parking
