Homework #3: Prototyping (100 points)
(Due 03/02/06)
1) (20 points) Prototyping techniques
For each of the prototyping techniques below briefly
describe the technique, explain its typical use, and provide pro and con for
the technique:
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Low fidelity paper based prototyping,
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Wizard of Oz prototyping,
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Vertical prototyping,
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Horizontal prototyping.
2) (50 points) Paper based low fidelity prototyping
(30 points) You are to build
a paper based low fidelity prototype mock-up of the following scenario:
A user goes to the http://www.travelocity.com web site and reserve a flight between two US
cities. During the interaction, the user should be able to:
-
set the depart and return date and time (up to 3 months
in the future),
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select the number of adults in the trip,
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select a specific airline,
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select the inbound flight,
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select the return flight,
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enter the credit card information,
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confirm his/her flight.
For this homework, you should not use screen snapshots, but
instead sketch the different element of the interface (pages, buttons,
pop-up windows, scroll lists...) on paper so that your interface
can be used to simulate the interactions described above.
(10 points) Using the paper interface you just constructed and a copy machine
(or a
digital camera), provide a 12 frames storyboard showing the key steps of
booking a flight on this site.
(10 points) From your study of this interaction, describe at
least 2 ways to improve the current design. Explain
all your answers.
3) (30 points) Wizard of Oz interface
After your analysis of the
http://www.travelocity.com,
Travelocity was impressed with your analysis and decided to hire you to
design their a phone (voice) based interface to be used by Travelocity
member to check the status of their flight. Describe how you will setup a
Wizard of Oz experiment to demonstrate your interface to your client
(explain/justify all your answers):
-
(5 points) How will you reproduced a realistic user experience
(users will most probably be in an airport (or a cab) while using your
system)?
-
(5 points) Describe the setting you will be using to
simulate this realistic experience,
-
(5 points) Describe the hardware you will use to run the
experiment,
-
(15 points) Provide a script for the Wizard of Oz as he or she is
simulating the following interaction:
-
Enter membership information,
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Select the desired flight,
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Provide flight information: including current gates
assignment, current departure time, current status. Each of this
piece of information should be accessible independently.
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