Web Accessibility

What is Web Accessibility?

• Web accessibility is about making websites, applications and content accessible to people with disabilities.
• It means that people can perceive, understand, navigate and interact with content.
• It ensures access to the widest possible audience on as many technological platforms as possible.
• It benefits the general population, including people using mobile devices, people with temporary disabilities and older people.

Accessibility guidelines

Accessibility guidelines are broken down into three levels of conformance:

• A (Level A) – Minimum accessibility: Basic web accessibility features that must be implemented.
• AA (Level AA) – Mid-range: More comprehensive accessibility features.
• AAA (Level AAA) – Highest: Advanced accessibility for people with a wide range of disabilities.

Layers of Guidence

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1. Principles - At the top are 4 principles that provide the foundation for Web accessibility: perceivable, operable, understandable, and robust.
2. Guidelines - Under the principles are guidelines. The 13 guidelines provide the basic goals to make content more accessible.
3. Success Criteria - For each guideline, testable success criteria provide the basis for conformance. Success criteria are written as testable statements (true or false) that are technology neutral.
4. Techniques – Each criterion lists one or more implementation techniques.