In ARIA, what is the purpose of the role=application?

The purpose of role=application in ARIA (Accessible Rich Internet Applications) is to enhance the interaction model of a native application environment. This role is particularly useful for web applications that require a higher level of interaction and behavior than typical web content. By assigning the role of application to a component, developers indicate that the element is intended to function more like a desktop application, rather than as regular web content. This affects how screen readers and other assistive technologies interpret user interactions, allowing them to provide a more suitable experience for users who rely on these technologies.

When role=application is used, it generally modifies the behavior of keyboard navigation and other interaction patterns to align more closely with what users might expect from a traditional desktop interface. It allows for a different set of accessibility patterns to be applied, facilitating a smoother and more intuitive user experience for users navigating complex interactive components on a webpage.