PRE2019 3 Group4 Usability-Tests

Usability Tests

Users

Task 1: Device placement

• Participant is required to put the device at a stable/reachable surface and in front of them (in the correct way with the buttons at the top and the charging input at the right hand side)
• The participant is able to do this, this task is passed.

Task 2: Charge the device

• Participant is required to charge the device by plugging a cable in the device as well as in the power output.
• If a sound is produced by the device (which means that it is charging), this task is passed.

Task 3: Turn the device on

• Participant is required to turn on the device by pressing the on/off button.
• If a sound is produced by the device (which means that it is on), this task is passed.

Task 4: Change modus at novice level

• Participant is required to put the modus at the novice level.
• If the participant uses the arrow shaped buttons properly (to change buttons), then a sound will be generated which indicates the current modus the participant has activated. If the participant has activated the correct modus, then this task is passed

Task 5: Typing a letter

• Participant is required to type one letter by using the device. This task measures two things:
  • If a participant is able to recognize the six-point system of the Braille cells by using the left Braille cell on the device. This will be measured by response time (time to recognize)
  • If the participant entered the correct letter (error rate) by using the right Braille cell of the device properly.
• If a letter is entered, then this task is passed.

Task 6: Using the reset button

• Participant is required to type another letter, however is he asked to make a mistake on purpose. At this point, the participant has to use the reset button to correct his mistake.
• If the participant succeeds, then this task is passed.

Task 7: Turn the device off

• Participant is required to turn off the device by pressing the on/off button again.
• If the participant is capable to turn off the device, then this task is passed.

Tutors

Task 1: Guidance

• The tutor must be able to help the student with the initial set-up of the device and getting familiar with its hardware and software. The typed manual can be consulted for this.

Task 2: New study material

• the tutor must be able to understand the GUI of the website/program that allows them to make new study material. Potentially the website/program can be used to track the performance of the students. This can be used to offer additional assistance.