Data Flow Diagram for Ars

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Level (0) Data Flow Diagram

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Level (1) Data Flow Diagram of General Enquiry

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Level 1DFD of Passenger Enquiry Section

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Level 2 DFD of Booking

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Level 2 DFD Cancellation

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Passenger

1.0
General
Enquiry

2.0
Passenger
Enquiry

3.0
Booking
Counter

4.0

Cancellation

Information

Booking Inquiry

New Passenger Information

Reservation Request

Ticket Confirmation and Status

Cancellation Request

Acknowledgement

Passenger

1.0
General
Enquiry

1.2
Fare
Enquiry

1.3
Discount

1.1
Flight
Enquiry

Flight

R
E
Q
U
E
S
T

I
FO
R
M
A
T
I
O
N

Fare

Discount

R
E
Q
U
E
S
T

I
FO
R
M
A
T
I
O
N

I
FO
R
M
A
T
I
O
N

R
E
Q
U
E
S
T

Request Information

Required Information

R
E
Q
U
E
S
T

I
FO
R
M
A
T
I
O
N

I
FO
R
M
A
T
I
O
N

I
FO
R
M
A
T
I
O
N

R
E
Q
U
E
S
T

R
E
Q
U
E
S
T

Status

Cheque
Number

Status

Credit Number

Status

Pay

Cash

Set status
To confirmation/
Waiting

Cash
Payment
Status

Acknowledgement

Entry Stand by Date

Booking Later
Update

Booking Now

Acknowledgement

Update

Ticket (On the Spot)

Cheque

Credit

Cash

3.0
Mode of
Payment

Booking

Booking

3.2
On the
Spot

3.2
Stand by
Booking

Passenger

Passenger

3.0
Booking
Counter

Passenger

1.0
Passenger
Enquiry

1.1
Fare
Enquiry

1.2
Passenger
Enquiry

Passenger

Passenger

New passenger or
Required Information

Entry of New Record
Or existing passenger
Enquiry

Unique
Passenger

R
e
q
ue
s
t

R
e
q
ue
s
t

R
e
q
ue
s
t

R
e
q
ue
s
t

I
nf
o
rmation

Unique
Passenger

Information

Passenger

4.0
Cancellation
Section

Cheque

Passenger

Passenger

Passenger

4.1
Cancel
Ticket

4.2

Reschedule

4.3
Validity
Cheque

Request for Cancellation

Acknowledgement

New
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