Laptop with screenshot of AUS score displaying

Fable Announces Accessible Usability Scale to Enable Organizations to Measure the Experiences of Assistive Technology Users

The free tool is a modified System Usability Scale that can measure the experiences of those who use assistive technologies, for example people living with blindness who use screen readers.

Toronto, CanadaDecember 2, 2020 – Today Fable Tech Labs Inc. (“Fable”), a leading accessibility testing platform powered by people with disabilities, announced the launch of the Accessible Usability Scale (AUS) and made it freely available to all. ­­­ It is a tool that quantifies and measures the perceived user experiences of assistive technology users, to improve the usability of websites and apps and make them more accessible.

The AUS is based on the System Usability Scale (SUS). SUS was originally developed in 1986 and is a common psychometric tool to assess user experience. However, it doesn’t effectively measure the experiences of assistive technology users, such as people with disabilities who use screen readers or voice navigation.

Developed based on thousands of hours of engaging people with disabilities across more than 25 assistive technology configurations on