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1 Interface Redesign of Flight Reservation Systems Nicholas R. Jones Chris S. T. Fernandes Computer Science Union College
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Nicholas R. Jones2 Human Computer Interaction Usability Analysis Flight Reservation System
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Nicholas R. Jones3 Outline Motivation Existing Solutions Goals Evaluation Process Results Conclusion
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Nicholas R. Jones4 Motivation Easy for anyone to make an interface Some are not intended for human consumption Interfaces that are not tested
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Nicholas R. Jones5 Existing Solutions Travel Sites: Travelocity Orbitz Expedia Focusing on Flight Reservations
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10 Goals 1.) Time to learn 2.) Speed of performance 3.) Rate of errors by users 4.) Retention over time 5.) Satisfaction 1. Shneiderman, Ben. Designing the User Interface. Third Edition. Reading, MA: Addison Wesley, 1998. p 15
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Nicholas R. Jones11 Evaluation Process Test on Users Analyze data to find where problems occur Suggest multiple ways to fix problems Test for best solutions Incorporate solutions in redesign Run user evaluation again
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Nicholas R. Jones12 Methods Usability Analysis Scenarios Timing and Noting “Thinking-Aloud Protocol” Surveys Automated Testing Collect various information remotely
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Nicholas R. Jones13 User Test 1 6 participants tested Each participant – 3 scenarios Frustrating Issues Waiting and re-entering data Distinguishing between different flight Date and time inputs
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Nicholas R. Jones14 User Test 2 Entering in Dates Calendar Input Pull-Down Menus Text in MM/DD/YY format Re-entering in Data Left, Right, or Bottom
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Nicholas R. Jones15 Test 2 results Pull down menus were significantly faster than calendar input Inputting into the Left and the Bottom was significantly faster and more satisfying than on the Right N=49 participants
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Nicholas R. Jones16 User Test 3 Nine students tested several interfaces using three scenarios. Fictional FlightGuide.com site Travelocity, and Orbitz used for comparisons
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Nicholas R. Jones17 Input Screen Round trip /one way needs to be clearer before/after/around helpful if noticed A method to see flight duration before results Results Screen Sort by flight length, start time, price Total flight duration Results kept together and not separated
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Nicholas R. Jones18 User Test 4 5 students participated Used fictional FlightGuide.com site
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Nicholas R. Jones19 Input Screen missed one way/round trip still, did not like in middle liked trip duration Half used before/around/after Results Screen Did not notice sort by fields Would like an overview of results Easier way to track results. (color code)
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Nicholas R. Jones20 Conclusions Information Visualization Search Overview Zoom and Filter Details on Demand Asking users is not enough
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Nicholas R. Jones21 5 users is enough http://www.useit.com/alertbox/20000319.html
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