Concurrent Input Mechanisms
Conformance Level: AAA
Summary:
WCAG 2.5.6, "Concurrent Input Mechanisms," advocates for web content to be accessible through multiple input methods. This criterion is essential for users who switch between input methods like mouse, keyboard, and touch, enhancing accessibility and convenience.
What:
This guideline ensures web content supports various input methods simultaneously without restricting users to a single type.
Why:
People have different preferences or needs for input methods. Some may use a mouse at a desk but prefer touch on a tablet. Many people with disabilities switch methods for comfort and accessibility.
Examples and Scenarios:
- E-Commerce Site: A user shops with a mouse on a desktop but switches to touch on a mobile device.
- Online Forms: Filling out a form using a keyboard and then navigating the page with a touch screen.
- Educational Website: Reading content with touch scrolling and taking quizzes using a keyboard.
How to Comply:
- Websites: Design sites to function with mouse clicks, keyboard navigation, and touch gestures.
- Mobile Apps: Ensure apps respond to touch, stylus input, and external keyboards.
- Software: Support various input methods, including specialized assistive technologies.
Exceptions:
- Security Constraints: Certain secure processes might require a specific input method.
- Technical Limitations: Some functions, like drawing in a graphics app, may inherently rely on a particular input method.