Accessible Rich Internet Applications (ARIA) is a set of attributes that enhances the accessibility of dynamic web content and applications for users with disabilities. In this article, we will explore the significance of accessible ARIA, its role in fostering inclusivity, and best practices for implementation.

Understanding ARIA

Accessible Rich Internet Applications (ARIA) is a set of attributes that provide additional information to assistive technologies, making it easier for users of assistive technology to navigate and interact with dynamic content and applications.  It is important to note that ARIA doesn’t change anything for sighted users but enhances the users of assistive technology to be able to interact with our web content or applications in what is hoped to be a barrier free experience.
Even though we utilize ARIA for many things in web content and applications ARIA is not a programming language and shouldn’t be used as one.  ARIA has no procedural logic or interactivity on its own but ARIA is used directly with JavaScript which can provide that programming component to really give ARIA the power it needs to make its impact.

ARIA Roles and States

ARIA introduces roles that define the purpose of an element, such as buttons, menus, or sliders. These roles help assistive technology convey the structure and functionality of the interface to users who may not have a visual understanding of the content.
Roles should be used for non-semantic html to help add meaning for users.  
States on the other hand help to tell a user if something is in or off.  If something is checked or not, and if something is opened or closed.  States are important for specific features such as expandable accordions so that users know how to interact with specific features.

Dynamic Content Accessibility

ARIA is particularly beneficial when dealing with dynamic content, such as single-page applications or elements updated via AJAX. By utilizing ARIA attributes, developers can ensure that changes in content are communicated effectively to users with assistive technologies.  These changes are typically conveyed to the user by ARIA live regions.

Live regions are used to announce information to users independently of what a user does.  This means that the user will be notified automatically, and the website does not have to wait for the user to complete some kind of action.  Live regions should be used for things like notifying a user of a form submission, or form errors upon submission, they should also be used if you have content auto-update on a page. 

You want to make sure that you are not bombarding a user with announcements, so you want to make sure you use aria-live=“polite” whenever possible to respect the user interaction it is currently is on.  For example, if the screen reader is reading out a paragraph of information to the user after the paragraph is finished the aria-live region will then be announced.  

Custom Widgets

When creating custom widgets or interactive elements, ARIA can be used to define roles, properties, and states, providing a rich and accessible experience for all users. Properly implementing ARIA ensures that custom components are recognized and interpreted correctly.

Best Practices for Accessible ARIA Implementation

Semantic HTML First

ARIA should complement, not replace, semantic HTML. Utilize semantic HTML elements whenever possible and use ARIA attributes to enhance or provide information that may not be apparent from the HTML alone.
It is always important to use semantic HTML whenever possible and add ARIA to enhance the accessibility that comes from the semantic markup.

ARIA Landmarks

Semantic landmark regions should be used first but when that is not possible implementing ARIA landmarks can help us to define regions of a webpage, such as headers, navigation, and main content areas without recoding a website or digital platform. Landmarks aid in quick navigation for users with assistive technology, allowing them to jump directly to specific sections.

Testing and Validation

Conduct testing with assistive technologies. Manual and real-world testing provides valuable insights into the user experience and can uncover issues that automated testing tools will not detect.  Whenever ARIA is used manual testing with an assistive technology device should be conducted to verify that the assistive technology user is receiving the same information as a non-assistive technology user would be. 

Conclusion

Accessible ARIA plays a pivotal role in creating a digital, by understanding the fundamentals of ARIA, implementing best practices, and staying informed about updates, developers can contribute to an inclusive web environment. Accessible ARIA not only enhances the user experience for individuals with disabilities but also aligns with the broader goal of creating a digital world where information and interaction are accessible to everyone, regardless of their abilities.