Inclusive design is a web design approach that strives to enable and accommodate human diversity, including disabilities and impairments. The goal is to design to enable multiple methods to access the same functionality.
Web accessibility is the end result of the inclusive design process.
Usability makes web experiences easy to use and intuitive.
WCAG 2.0 became an official recommendation in 2008.
Perceivable – information and UI is presented to users in ways they can perceive.
Operable – UI and navigation must be operable.
Understandable – information and the operation of the UI must be understandable.
Robust – Content must be interpreted reliably in a variety of user agents including assistive technologies.