ASSISTIVE
TECHNOLOGY
GUIDE
Understanding the Tools People Use to Access the Web
Assistive technology allows individuals with disabilities to interact with digital products and services in ways that support their specific needs. These technologies help users read content, navigate interfaces, complete forms, and communicate with websites and applications.
For organizations building accessible digital experiences, understanding how assistive technology works is essential. Accessibility standards such as WCAG are designed to ensure that websites function properly with these tools. When accessibility is implemented correctly, assistive technologies can interpret and present content in ways that make it usable for a wide range of users.
This guide provides an overview of several common assistive technologies and the accessibility considerations associated with them.
What Is Assistive Technology?
Assistive technology refers to software or hardware that helps people with disabilities perceive, understand, navigate, or interact with digital environments. These tools support individuals with visual, auditory, motor, and cognitive disabilities.
Examples include screen readers that convert text to speech, voice input systems that allow users to control devices through speech, and keyboard navigation tools used by individuals who cannot operate a mouse.
Accessible design ensures that these technologies can interpret content accurately and provide meaningful feedback to users.
Keyboard Navigation
Many individuals interact with websites using only a keyboard. This includes users with mobility impairments, individuals who rely on assistive devices, and many screen reader users.
Keyboard accessibility allows users to move through interactive elements such as links, buttons, menus, and form fields without relying on a mouse.
Accessible websites ensure that:
All interactive elements are reachable using the keyboard
Navigation follows a logical order
A visible focus indicator shows the current location on the page
Interactive components such as menus and dialogs can be operated from the keyboard
Failure to support keyboard navigation can make key functions of a website inaccessible.
Screen Magnification
Individuals with low vision may rely on screen magnification software or browser zoom features to enlarge content. Some users may also adjust color settings or increase text size to improve readability.
Websites should remain usable when magnification is applied. Content should reflow properly, text should remain legible, and interactive elements should not overlap or disappear.
Accessibility considerations include:
Responsive layouts that adapt to zoom
Adequate color contrast
Scalable text and interface components
Consistent page structure
These practices help ensure that content remains understandable when viewed at higher magnification levels.
Alternative Input Devices
Some users interact with computers through specialized input devices such as switch controls, adaptive keyboards, head pointers, or eye tracking systems. These technologies support individuals with significant motor disabilities.
Accessible websites must ensure that all functions can be completed without requiring precise pointer movements or complex gestures. Interfaces should allow users sufficient time to interact with controls and should avoid interactions that depend on dragging, hovering, or rapid input.
Screen Readers
Screen readers are software applications that convert digital text into synthesized speech or Braille output. They are commonly used by individuals who are blind or have severe vision loss.
Screen readers interpret the underlying structure of a webpage rather than its visual layout. Because of this, proper semantic markup is critical. Headings, lists, landmarks, form labels, and alternative text for images allow screen reader users to understand page structure and navigate efficiently.
Well known screen readers include JAWS, NVDA, VoiceOver, and TalkBack.
Key accessibility considerations include:
Logical heading hierarchy
Descriptive alternative text for images
Meaningful link text
Properly labeled form controls
Clear page titles and landmarks
Without these elements, the information presented to screen reader users can become fragmented or difficult to understand.
Voice Input and Speech Control
Voice input systems allow users to control computers and mobile devices through spoken commands. These tools are commonly used by individuals with limited mobility or repetitive strain injuries.
Speech recognition technology enables users to dictate text, activate controls, and navigate interfaces using voice commands.
Examples include Dragon NaturallySpeaking and built in speech recognition tools available on many operating systems.
Voice input works best when interfaces use clear and descriptive control names. When buttons, links, or form fields lack accessible labels, voice command users may not be able to identify or activate them.
Refreshable Braille Displays
Refreshable Braille displays convert digital text into tactile Braille characters that users can read through touch. These devices are typically used in combination with screen readers.
Because Braille displays present content sequentially, clear document structure and accurate labeling are particularly important. Headings, lists, form labels, and meaningful link text help users interpret the information being presented.
Accessible markup enables assistive technologies to provide accurate and meaningful Braille output.
Accessibility and Assistive Technology
Assistive technologies rely on well structured and standards compliant websites in order to function correctly. Accessibility guidelines such as WCAG provide a framework for ensuring that digital content can be interpreted by these tools.
Key principles include providing semantic structure, ensuring keyboard operability, offering text alternatives for non text content, and maintaining sufficient color contrast.
When these principles are followed, assistive technologies can accurately communicate content and functionality to users.
How RIV Approaches Accessibility
RIV focuses on creating digital experiences that function effectively with the technologies people actually use. Our accessibility audits and remediation work evaluate how websites perform with screen readers, keyboard navigation, and other assistive technologies.
This approach helps organizations identify practical barriers that may not be detected through automated testing alone.
By combining structured accessibility standards with real world testing, RIV helps organizations build digital products that are usable, compliant, and inclusive.
Additional Resources
Organizations seeking to improve accessibility may benefit from reviewing established guidelines and documentation related to assistive technology and accessible design.
Important references include:
Web Content Accessibility Guidelines (WCAG)
ARIA Authoring Practices
Accessibility guidance from major operating systems and browser vendors
Understanding assistive technology is an important step toward creating digital experiences that serve a broader and more diverse audience.