Pay Safe Parking
Smart parking payment system
- DFD
- ERD
- PostgreSQL
- Process mapping
A parking payment platform analysed from the business rules up. I modelled how a vehicle moves through entry, billing, and exit, then turned those rules into data flow diagrams and a normalised entity relationship model the build could rely on.
- Business logic for tariffs, sessions & exceptions
- Levelled data flow diagrams (DFD) of the payment flow
- Entity relationship diagram (ERD) for vehicles, sessions & transactions