LO-FI PROTOTYPING AND
USABILITY TESTING
CSE 440
Michelle Yee| Issam Lamsili | Elly Searle | Blake Thomson
Problem - Solution
Problems
 Not enough exercise
 Working out too much time & planning!
 Driving  pollution
Solution
 Integrate more steps into your day
 Plan your daily activities around your walking
goal
Mission Statement
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Design an application that encourages people to
exercise more, drive less, and to explore the area
around them
Overview
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Representative tasks
Lo-fi structure
Scenarios
Experimental method
Experimental results
Suggested UI changes
Conclusion
Representative tasks
1.
Set a personal walking goal
2.
Figure out how to walk more
3.
Achieve a daily walking goal
Prototype structure
Screens
Text fields & buttons
Keyboard
Combo boxes
Slider
Scenario 1- set personal walking goal
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Just downloaded the application
Scenario 1- set personal walking goal
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Collecting information…
Scenario 1- set personal walking goal
Scenario 1- set personal walking goal
24 hours later…
Scenario 1- set personal walking goal
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Enough information on your walking habits
7500
Scenario 1- set personal walking goal
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Goal set!
Scenario 2- figure out how to walk more
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Just arrived to Safeway…
Safeway
Scenario 2- figure out how to walk more
Next Wednesday…
Scenario 2- figure out how to walk more
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Reminder
Scenario 2- figure out how to walk more
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More steps
Scenario 2- figure out how to walk more
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Walking…
Scenario 2- figure out how to walk more
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Route map
Scenario 3-achieve a daily walking goal
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Check progress
Scenario 3-achieve a daily walking goal
Scenario 3-achieve a daily walking goal
Scenario 3-achieve a daily walking goal
Scenario 3-achieve a daily walking goal
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Display results
Scenario 3-achieve a daily walking goal
Select a route
Scenario 3-achieve a daily walking goal
After some walking…
Scenario 3-achieve a daily walking goal
Experimental Method
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Recruited 3 participants
Environment: engineering annex lounge
Roles: 1 moderator
1 computer
2 observers
Each participant pre-test questionnaire
 task book explaining 3 tasks
 perform 3 tasks + thinking aloud
 post-test questionnaire
Test measures: incidents + reactions + questionnaires
Experimental results
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Negative
Unclear home screen
Needs to be more descriptive
Lack of a help feature
“Current route” button ambiguous
Meaning of history graph unclear
Remind me button too prominent
Positive
status bar dynamically updated
“auto-learn” feature convenient
Suggested UI changes
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Change home screen (include menu button)
Add help feature
Make it more descriptive
Titles for each screen
More consistent look and feel
Conclusion
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Lo-fi prototype first test for our application
Some limitations of paper prototype
Some participants did not read the tasks carefully
Overall, satisfied with feedback received
Ready to start working on hi-fi prototype!
Questions