What are the four principles of accessibility as defined by the WCAG?

The correct answer highlights the four principles of accessibility as defined by the Web Content Accessibility Guidelines (WCAG): Perceivable, Operable, Understandable, and Robust.

These principles serve as a framework for creating accessible web content and are essential for ensuring that digital information can be effectively accessed and utilized by all users, including those with disabilities.

• Perceivable means that information and user interface components must be presented to users in ways that they can perceive, which includes providing text alternatives for non-text content, captions for audio and video, and ensuring content can be rendered in different modalities for various disabilities.

• Operable refers to the requirement that users must be able to operate the interface components and navigate through the content, which involves making sure all functionality is available from a keyboard and ensuring users have adequate time to read and use the content.

• Understandable ensures that the information and operation of the user interface must be understandable to users, meaning that the content should be readable and predictable.

• Robust signifies that content must be robust enough to work with current and future user agents, including assistive technologies, ensuring that it remains accessible as technologies evolve.

Understanding these principles is essential for anyone involved in web development