Use clear layouts with distinct calls to action to help users navigate through what you've designed.

Clear

Design your applications to accommodate a variety of users and user agents, including assistive technologies.  As technology advances, the content should remain accessible.

Robust

Support assistive technologies that may be specific to your platform. Examples of assistive technologies include input methods for touch, keyboards, and mouse.

Specific

University of Illinois at Urbana-Champaign

Accessibility is concerned with the quality of being easy to use and understand.

Design for accessibility is often seen by companies as a waste of money because the impression is that people with disabilities make up a small segment of the population. 

When you design for accessibility, you will often find that you create products that are easier for everyone to use not just those with disabilities. Don’t neglect accessibility in the user experience.

Finally, accessible design is now a legal obligation in many jurisdictions including the EU and failure to deliver it may result in fines. In The USA, there have been instances in which companies have been sued due to their failure in complying with the Americans with Disabilities Act on the topic of accessibility of their designs.

Accessibility

Material Design Documentation

3 Principles of Accessibility in Design

- Assistive Technology
- Information Hierarchy
- Color and Contrast
- Accessible Layout
- Writing and Accessibility Text
- Imagery
- Sound and Motion

Elements of Accessible Design

The Web Content Accessibility Guidelines (WCAG) is a global standard for web content accessibility, with documents explaining how to make web content more accessible for those with disabilities.  Web content refers to text, images, and sounds, as well as code or markup.  In the WCAG 2.0 and 2.1 Documents, there are guidelines included based on these four principles: “perceivable, operable, understandable, and robust.”

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