What words would you measure useability in 3 levels for WCAG Accesibility, keeping it short, simple and easy to understand

1. What are the 4 principles of WCAG?
2. How many types of accessibility are there?
3. What is WCAG 2.1 level AA?
4. What is usability and accessibility?

What are the 4 principles of WCAG?

WCAG 2.0 is based on four main guiding principles of accessibility known by the acronym POUR perceivable, operable, understandable, and robust.

How many types of accessibility are there?

The Web Content Accessibility Guidelines (WCAG) are organized by four main principles, which state that content must be POUR: Perceivable, Operable, Understandable, and Robust.

What is WCAG 2.1 level AA?

Examples of WCAG 2.1 Level AA Success Criteria

Level AA includes 20 additional criteria to provide a better experience for users with disabilities. These criteria cover important user experience (UX) issues, such as: Maintaining appropriate color contrast levels for text. Writing descriptive subheadings.

What is usability and accessibility?

Accessible Design

Combining accessibility standards and usability processes with real people ensures that web design is technically and functionally usable by people with disabilities. This is referred to as usable accessibility or accessible user experience (UX).