Keyboard accessibility is classified under which principle?

Keyboard accessibility falls under the principle of operable, which emphasizes that users must be able to interact with the user interface using a keyboard. This principle is crucial for individuals who cannot use a mouse due to physical disabilities or other limitations. Ensuring that all functionalities are accessible via keyboard navigation allows users to engage with web content and applications effectively.

The operable principle involves guidelines that dictate how users can navigate and interact with content. For instance, a website should be designed so that all interactive elements, such as links, forms, and buttons, can be accessed using keyboard shortcuts or tab navigation. This ensures that users who rely on keyboard input can perform tasks, access information, and control their experience without barriers.

While the other principles—perceivable, robust, and understandable—also focus on different aspects of accessibility, they do not specifically address the interaction and navigation aspects that keyboard accessibility entails. Therefore, the correct classification of keyboard accessibility aligns with the operable principle, highlighting its importance in creating an inclusive web experience for all users.