May 22nd, 2020

Activity Summary

At this session, a participant with low-vision interacted with visual components of the existing prototype. 

• Link to prototype:

• Script for using the prototype:

  • Add Forward

  • Add Turn Right

  • Add Turn Left

  • Select Forward to adjust its parameters

  • Adjust the number of steps to 5

  • Close Forward Actions Panel

  • Select Turn Right to adjust its parameters

  • Adjust the angle to 89 degrees

  • Close Turn Right Actions Panel

  • Select Turn Left to adjust the turn’s angle

  • Adjust angle to -15

  • Close Turn Left Actions Panel

  • Select Turn Left to Delete Step

  • Delete Turn Left

  • Add a program line to build a new sequence

Goals

• To identify if the addition or deletion actions were accessible to low-vision user with ATT

• To recognize visual element that enable or challenge low-vision user

Notes from the session

• Low difficulty adding or deleting actions to the sequence. However, there may be difficulty if the user has eye-wandering tendencies

• User had difficulty seeing ‘plus’ signs 

• Preference of using voice/speech for number input for efficiency 

• Confusion between the plus sign at the end of the sequence chain, and the plus to add a new line of code

• Preference to have actions in line with the sequence (i.e. aligns with the horizontal sequence)

• Preference to increase three vertical dots

• The prototype controls (arrows) were small making them difficult to navigate.

Notes for C2LC design

• Icons (e.g. trash bin) to be bigger and bolder for greater visual contrast (e.g. black) 

• Provide more blank/white space between action icons

• Increase Line 1 text to be bigger and bolder 

• Provide setting for different input options (e.g. speech)

• Distinguish plus sign icons to differentiate 

• Allow Esc key to exit action panel

• Increase the size of panel option controls (e.g. three vertical dots)