How screen readers work

What this part covers

This part explains what a screen reader exposes, how information reaches it, and how people navigate web and app interfaces with keyboards, touch gestures, and braille controls.

• Recognise a screen reader as an alternative interface, not only text read aloud.
• Trace the information chain from product code to platform accessibility APIs and output.
• Account for different navigation models and product environments.

4 LESSONS

Lessons in this part

1. Start with the right mental model4 min reading · 2-3 min check
2. Follow the information chain5 min reading · 2-3 min check
3. Navigate with different input models5 min reading · 2-3 min check
4. Compare web and app environments5 min reading · 2-3 min check