1. User control: enabling the user to change the font and other elements on the page.
2. Mouse-free input: enabling navigation for visually impaired users who may rely only on keyboards for pointing and clicking.
3. Text alternatives: allowing blind users to understand website images and video.
4. Flexibility: allowing a web page to adjust to different devices and screens.
Juan can apply user control, mouse-free input, text alternatives, and flexibility in his website design to improve usability.
Juan can apply the following usability factors in his website design:
User control: enabling the user to change the font and other elements on the page.
Mouse-free input: enabling navigation for visually impaired users who may rely only on keyboards for pointing and clicking.
Text alternatives: allowing blind users to understand website images and video.
Flexibility: allowing a web page to adjust to different devices and screens.