1. Software Models for a Toll Gate System
COP 4331 and EEL4884
OO Processes for Software Development
© Dr. David A. Workman
School of EE and Computer Science
University of Central Florida
February 10, 2009

2. Use Case Diagram February 10, 2009 (c) Dr. David A. Workman
A Toll Gate
Pay By
Epass
«includes»
Epass Vehicles
Post Transaction
Pick Up
Cash Receipts
«includes»
State
Toll Road
TPS
Armored Currier
Service
«includes»
Pay By
Cash
Cash Vehicles
February 10, 2009
(c) Dr. David A. Workman

3. Use Case Specification: Pay by Cash
Cash Vehicles
1: Request Toll Fee
2: Accept Payment
3a: Payment Rejected
3b: Return Change & Receipt
Toll Clerk
Gate
Exit Lane
6b: Pass Through
Rejected Vehicle
Return Lane
4a: Return Through
4b: Signal Go
5b: Flash Go
Stop/Go
Light
February 10, 2009
(c) Dr. David A. Workman

4. Analysis Model Specification: Pay by Cash
2g: Tansaction ACK
1: Request Toll Fee
2d: Produce Receipt
Toll Clerk
Cash Vehicles
2a: Accept Payment
2c: Enter Transaction
2f: Transmit Cash Transaction
3a: Payment Rejected
POS
Terminal
State TPS
4b: Signal Go
2b: Deposit Payment & Remove Change
3b: Return Change & Receipt
2e: Create
5b: Flash Go
Stop/Go
Light
Cash
Transaction
6b: Pass Through
Gate
Exit Lane
Cash Drawer
4a: Return Through
Rejected Vehicle
Return Lane
February 10, 2009
(c) Dr. David A. Workman

5. Analysis Model: Class Diagram
Transaction
GateId: Text
Location: Address
YYMMDD: Date
HHMMSS: Time
TPS
There are three
Instances of this class: Approaching, Rejected, Cleared *
VehicleContainer
Cash
Transaction
Payment: Money
Change: Money
Epass
Transaction
EpassId: Account
Currier
Transaction
DriverId: Employee
TruckId: PlateNo
Amount: Money *
CashRegister
Drawer: Money
Vehicle
VehicleId: PlateNo
Receipt
GateId: Text
Location: Address
YYMMDD: Date
HHMMSS: Time
TollPaid: Money 1
ArmoredTruck
DriverId: Employee
Amount: Money
EpassVehicle
EpassId: Account
CashVehicle
Cash: Money
TollRecord: Receipt 1
February 10, 2009
(c) Dr. David A. Workman

6. Analysis Model: Communication Diagram
:EpassVehicle
3a: Get
Vehicle Id
TPS
6a: Send
Epass
Tansaction
Process
Epass
Vehicles
Approaching:
VehicleContainer
Transaction
2a: Serve Epass Vehicle
1: remove next vehicle
8c: Send
Currier
Tansaction
4a: Create Epass Transaction
5a: Add Cleared EpassVehicle
6c: Create
Currier Transaction
Manage
Approaching Vehicles
Transaction
Cleared:
VehicleContainer
7c: Add
Currier
Process
Courier
7b-2: Create CashTransaction
9b-2: Add Cleared Cash Vehicle
2b: Serve Cash Vehicle
2c: Serve Currier
10b-2: Send
CashTansaction
Process
Cash
Vehicles
5b-1: Add Rejected Cash Vehicle
5c: Transfer Cash
Rejected:
VehicleContainer
3c: remove daily cash receipts
4b-2: deposit
payment
4c:Get
Currier
Info
3b: Request Payment
6b-2: Return Change
5b-2: Remove Change
:CashVehicle
4b-1: Return
Insufficient Payment
CashRegister
Currier: ArmoredTruck
8b-2: Return Receipt
February 10, 2009
(c) Dr. David A. Workman

7. Analysis Sequence Diagram: Pay by Cash
:CashVehicle
Toll Clerk
CashDrawer
POS
TPS
Pay Toll Fee (Amount)
Cash Payment
Enter Transaction Amount
Deposit Payment
:CashTransaction
Remove Change
create
Transmit
Transaction
Return receipt
Return Change
Light
Return Receipt
Signal "GO"
"GO!"
February 10, 2009
(c) Dr. David A. Workman

8. Design Model: Class Diagram
Transaction
-GateId: Text
-Location: Address
-YYMMDD: Date
-HHMMSS: Time
Cash
Payment: Money
Change: Money
Epass
EpassId: Account
Currier
DriverId: Employee
TruckId: PlateNo
Amount: Money
TPS: ostream *
+getGateId()
+getLocation()
+Extract()
+Insert()
+operator>>
+operator<<
#Get()
#Put()
CashRegister
Drawer: Money
+Deposit( Money)
+Remove(Money)
Transaction is an
abstract Class.
GateId and Location are static data, hard
coded at load time. The constructor for
this class sets Date
and Time via calls to system library
functions.
Money
Sign: char Dollars: short Cents: short
+operator-()
+operator+(Money)
+operator-(Money)
+operator<(Money)
+operator>(Money)
+operator==(Money) +operator<=(Money)
+operator>=(Money)
+operator<<(Money&)
+operator>>(Money&)
+getDollars()
+getCents()
+getSign()
February 10, 2009
(c) Dr. David A. Workman

9. Design Model: Manage Approaching Vehicles
Open
Approaching
Vehicle Stream
Extract Next Vehicle
Dispatch to Process Epass
Vehicles
Dispatch to Process Cash
Dispatch to Process Currier
[No more
Vehicles]
[type=EpassVehicle]
[type=CashVehicle]
[type=Currier]
Close
February 10, 2009
(c) Dr. David A. Workman