Recruitment of participants for this usability test were limited to those within proximity of the researchers. All participants did not have any prior experience with the App. 6 participants were used in the usability report for the Hyundai Blue Link App.
3 participants started the test on the blue link app and 3 on the wireframe. Varying the platform with which participants started first helps counterbalance any learning effects.
Users were asked to complete three tasks, and the time taken for each task was measured.
Set the internal temperature of the car to 66ºC.
Unlock the driver side door.
You have forgotten your password, follow the process to reset it.
We observe significant improvement in the task times. The time taken on the wireframe does not include overhead time like loading, database access, server calls,etc. Users completed the tasks 88% faster on average, and found the prototype to be more efficient and intuitive.
Here are some of the comments made by the particpants during the test,
Post-test questionnaire results
After the completion of the tasks, users were asked to rate the app and the prototype on a scale from 1 to 5. This was done to obtain qualitative data; to compare the ratings and identify areas where our prototype failed.