The user quickly completes the task, but like the other two users, notes confusion over the wording.

Usability Problems and Changes to Prototype

Learnability

Because some users mistakenly looked around in "My Carpools" before noticing the "Next Date" tab, we decided to highlight the tab to make it more obvious.
Some non-native English speaking testers were confused by the wording on the "My Carpools" tab. We had referred to the user as "You" when assigning pickup dates on the schedule, which could be misconstrued as a person's name in some languages. In this new prototype, we decided to simply refer to the user by their name instead.
Originally, we didn't want to include instructions because, as discussed in class, a good user interface does not require much explanation. However, swapping dates is not a regular function, and all of our testers had trouble with that task. We decided to include more descriptive instructions for the swapping interface, sacrificing efficiency for the sake of learnability.
Users had a lot of trouble figuring out how to swap dates. We decided to scrap our original design altogether and add a separate tab specifically devoted to date swaps so that the function could be more easily accessed (also ties in with efficiency).
Because all three users complained about the wording for the ride tracking interface on the mobile app, we changed "Track Ride" and "Untrack Ride" to "Enable Ride Tracking" and "Disable Ride Tracking," respectively, to make the button labels more intuitive and improve learnability.

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Task 4

Task 5

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