What defines web accessibility?
If it can be used effectively by both people with and without disabilities
What is the difference between usability and accessibility?
Usability defines how easily a system can be used by a user. Accessibility is the degree to which a system is used by as many people as possible without modification
What is universal design?
Making a product as accessible as possible to as wide a group of people as possible
What does P.O.U.R stand for?
Perceivable, Operable, Understandable, Robust. They are the four principles for web content accessibility design.