![Class](R4_Diagrams/Class Diagrams/FindParkingCD.png)
![Sequence](R4_Diagrams/Sequence Diagrams/FindParkingSD.png)
![Class](R4_Diagrams/Class Diagrams/EnterPinCD.png)
![Sequence](R4_Diagrams/Sequence Diagrams/EnterPinSD.png)
![Class](R4_Diagrams/Class Diagrams/AddYourParkingSpaceCD.png)
![Sequence](R4_Diagrams/Sequence Diagrams/AddYourParkingSpaceSD.png)
![Class](R4_Diagrams/Class Diagrams/ParkingRequestNotificationCD.png)
![Sequence](R4_Diagrams/Sequence Diagrams/ParkingRequestNotificationSD.png)
![Class](R4_Diagrams/Class Diagrams/EditVehicleCD.png)
![Sequence](R4_Diagrams/Sequence Diagrams/EditVehicleSD.png)
![Class](R4_Diagrams/Class Diagrams/LoginCD.png)
![Sequence](R4_Diagrams/Sequence Diagrams/LoginSD.png)
![Class](R4_Diagrams/Class Diagrams/SignUpCD.png)
![Sequence](R4_Diagrams/Sequence Diagrams/SignUpSD.png)
![Class](R4_Diagrams/Class Diagrams/AddCreditsCD.png)
![Sequence](R4_Diagrams/Sequence Diagrams/AddCreditsSD.png)
![Class](R4_Diagrams/Class Diagrams/ConfirmParkingSpaceCD.png)
![Sequence](R4_Diagrams/Sequence Diagrams/ConfirmParkingSpaceSD.png)