e-ticket airline reservation system (etrs)
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E-Ticket Airline ReservationSystem (ETRS)
CPSC 461Thursday LabGroup:
Kevin NuguyenBrad Rippe
Dhanireddy SravaniIris Tam
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Use Case
High Level
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Use CaseRequest Flights
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Use CaseScenarioRequest flight information
Name
Requests available flight information
Summary The user provides a destination and dates to the E-Ticket Reservation System (ETRS). The system
inquires the airline database about available flights and presents them to the customer.
Basic Events Customer System
1. Launches ETRS application 2. Displays UI for user to search available flights.
3. Selects origination city
4. Selects destination city
5. Selects departure date
6. Selects return date
7. Selects one-way or round trip
8. Selects connections or nonstop
9. Submit criteria
10. Validates customer data.
Data is valid if customer enters a start and end cities
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9. Validates customer data.
Data is valid if customer enters a start and end cities
that the system provides service to and valid dates
such that the start date is not prior to the end date and
vice versa. Invalid data are empty cities and dates,
dates that do not exist, or cities that the system does
not provide service to.
11. Shows list of flights that met customers criteria.
Alternatives None
Exceptions Customer System
1. If customer data is invalid system displays error
message
2. User acknowledges the message.
3. Displays UI with current criteria, allowing user to
modify desired flight information; continues at basic
event 9.
1. If data is valid and a flight cannot be found, the
system displays a messages informing the user that no
flights are available that met the current criteria.
2. User acknowledges the message.
3. Displays UI with current criteria, allowing user to
modify desired flight information; continues at basic
event 9.
Triggers
Customer needs flight information.
Assum tions The customer knows travel information dates and available bud et.t t t t
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mo y es re g t n ormat on; cont nues at as cevent 9.
Triggers Customer needs flight information.
Assumptions The customer knows travel information dates, and available budget.
Preconditions Customer has available internet connection and ETRS installed.
Postconditions Customer will have a list of flights that met specified travel criteria.
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Use Case
Choose a flight
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Name Choose a flight.
Summary The customer has been presented with options for flights to go to his/her destination. The customer
chooses a preferred flight and seat. The application puts the seat(s) on hold, and requests
payment information from the user.
Basic Events Customer System
1. The customer chooses a preferred flight.
2. The customer chooses a preferred seat.
3. Requests the chosen flight and seat(s) be put
on hold from the airline database.
4. Returns confirmation number to the
customer
5. Displays UI for the user to input payment
information
Alternatives None
Exceptions Customer System
1. If seat is not available, system displays an
error message stating that the current seat
is unavailable then displays an updated
seating chart; continues at basic event 2.
1. If the flight is not longer available system
displays an error message stating such
and displays an updated list of available
flights; continues at basic event 1.
Triggers Customer wants to a flight and seating on hold.
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on hold from the airline database.
4. Returns confirmation number to the
customer
5. Displays UI for the user to input payment
information
Alternatives None
Exceptions Customer System
1. If seat is not available, system displays an
error message stating that the current seat is
unavailable then displays an updated seating
chart; continues at basic event 2.
1. If the flight is not longer available system
displays an error message stating such and
displays an updated list of available flights;
continues at basic event 1.
Triggers Customer wants to a flight and seating on hold.
Assumptions The customer has input city of origin, city of destination, and dates of travel.
Preconditions Customer has a list of available flights that meet there criteria.
Postconditions Customer will have a flight and seating on hold.
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Use Case
Book a flight
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Name Customer books flight
Summary The application contacts credit card authorization service for payment authorization. The service
books the flight, and return confirmation number to the customer.
Basic Events Customer System
1. Display flight on hold and prompts user for
payment information.
2. Confirms flight and inputs preferred
payment information.
3. Contacts the credit card authorization
service.
4. Prompts for final verification.
5. Confirms transaction 5. The application sends the request to purchase
the ticket(s).
6. The response indicates success with an
authorization number, signed by the
payment authority.
7. The application sends a request in order to
find out how to cancel the reservation
should a problem occur later in theprocess.
8. The service provides the customer with a
confirmation number and displays the
customer iternary and wishes them a good
flight.
9. Charges are applied to customers credit card
Alternatives None
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Alternatives None
Exceptions Customer System
1. Customer is not satisfied with flight
arrangement on hold, he/she will be able to
cancel and reschedule. Continue at Use-Case:
Request flight information
1. If the application cannot communicate with
the authorization service, the application
displays a error message informing the
customer that communication cant be made
and to try there purchase later; continues at
basic event 1.
1. If the customers payment information cannot
be validated; the application displays an error
message and continues at basic event 1.
Invalid data is empty data, or
incorrect/incomplete credit card information.
Triggers Customer wants to purchase flight and seating arrangements on hold.
Assumptions
The customer has flight on hold.
Preconditions Customer has placed flight and seating on hold.
Postconditions Customer has confirmation number and valid e-ticket to travel. Customers credit card will reflect
the transaction in the next billing statement.
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Use Case Scenarios Thats it!
Thanks!