PowerApps Accessibility Standards and Guidelines

https://powerapps.microsoft.com/en-us/blog/powerapps-canvas-app-accessibility-guidelines/

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Power Apps portals conforms to the WCAG 2.1 accessibility standard

https://docs.microsoft.com/en-us/powerapps/maker/portals/admin/accessibility

ARIA Authoring Practices Guide

WCAG 2.0 and 2.1:

• http://usability.com.au/2008/09/accessible-forms-using-wcag-2-0/#comment-87243

• H90: Indicating required form controls using label or legend | WAI | W3C

Useful links:

• https://docs.microsoft.com/en-us/powerapps/maker/canvas-apps/accessible-apps

• Chapter 1: Introducing Narrator - Microsoft Support

• https://www.456bereastreet.com/archive/200505/voiceover_and_safari_screen_reading_on_the_mac/

• https://support.google.com/accessibility/android/answer/6283677