Assistive Technology

Assistive technology (AT) refers to any device, software, or equipment that helps people with disabilities perform tasks that might otherwise be difficult or impossible. In the digital context, this includes screen readers, screen magnifiers, alternative input devices, switch access systems, and eye-tracking hardware.

Common types of assistive technology

• Screen readers such as JAWS, NVDA, and VoiceOver convert on-screen content into synthesised speech or braille output
• Screen magnifiers like ZoomText enlarge portions of the screen for people with low vision
• Voice recognition software such as Dragon NaturallySpeaking allows hands-free computer control
• Switch devices enable people with limited mobility to interact with computers using one or two buttons
• Alternative keyboards and pointing devices including head-tracking systems and sip-and-puff controllers

Understanding how people use assistive technology is essential for building inclusive digital products. Developers and designers who test with real AT gain a much deeper appreciation of the barriers that inaccessible design creates.