By what standards does Section 508 grade accessibility?
Section 508 uses the Web Content Accessibility Guidelines (WCAG). WCAG has four main principles:
Your content is perceivable. Everything can be perceived in more than one way. If someone cannot see, written content can be read by a screen reader. If someone cannot hear, audio content has captions.
Your content is operable. Everything can be operated in more than one way. If someone cannot use a mouse or touchpad, they can navigate by keyboard or by voice command software. If someone moves or reads slowly, they can request additional time to complete a task.
Your content is understandable. Everything can be understood. If someone clicks on a navigation menu, it behaves like a navigation menu. If a button says, “Read More” it does what you expect it to do. If an error is made on a form, an error message points out the location of the error and suggests how to fix it.
Your content is robust. Everything can roll up to the newest and shiniest hardware and not break.