Rosenverse

This video is only accessible to Gold members. Log in or register for a free Gold Trial Account to watch.

Log in Register

Most conference talks are accessible to Gold members, while community videos are generally available to all logged-in members.

SUS: A System Unusable for Twenty Percent of the Population
Gold
Wednesday, June 9, 2021 • Design at Scale 2021
Share the love for this talk
SUS: A System Unusable for Twenty Percent of the Population
Speakers: Sam Proulx
Link:

Summary

Did you know that the SUS creates biases in your research, affecting one in five people? That’s right! People with disabilities, especially those who use assistive technology, are not considered by most of the questions in the SUS. When the SUS was invented, the author encouraged people to change it to suit different needs. In this talk, Samuel Proulx and Abid Virani from Fable will discuss how Fable adapted the SUS to work for assistive technology users. Drawing from over five thousand hours of research and testing involving assistive technology users, we created the Accessible Usability Scale (AUS). This presentation will include trends in AUS responses since it was released in December of 2020.

Key Insights

  • Assistive technologies mainly split into screen readers, screen magnifiers, and alternative navigation devices, each with distinct user needs.

  • Screen reader users heavily rely on semantic web structure and proper labeling for efficient navigation.

  • Magnification users often supplement their experience with screen reader features to reduce eye strain.

  • Alternative navigation users use multiple input methods like voice commands and head mice, providing fallback options.

  • Traditional usability labs and standard SUS questionnaires fail to consider unique accessibility challenges and setup of assistive tech users.

  • SUS questions like needing technical support or learning speed are confusing or irrelevant to assistive tech users without adaptation.

  • Fable created the Accessible Usability Scale to better evaluate assistive tech user experience by adapting question language and scope.

  • Preliminary AUS data indicates screen reader users experience the lowest usability scores due to lack of backup input methods.

  • Remote usability testing greatly increases participation and authentic results by allowing users to test in familiar, customized environments.

  • User skill with assistive tech, experience level, and mental models vary significantly and must be considered beyond linear novice-expert scales.

Notable Quotes

"Assistive technology includes software and hardware that people with disabilities use to access computers."

"Screen readers let us jump directly to content, replicating visual skimming of a web page."

"Expert screen reader users listen at over 300 words per minute and still fully understand the content."

"Magnification can cover the entire screen two to ten times, and users pan around to see different areas."

"Many magnification tools also have screen reader functions to reduce eye strain and help users."

"Alternative navigation users might use voice commands, head mice, or grid coordinates to access elements."

"Traditional usability labs often force assistive tech users to use unfamiliar setups, creating barriers."

"I am a technical person, yet I might still need someone who can see to help me use certain sites."

"Accessibility is a spectrum; if frequent tasks require assistance, the product is inaccessible for me."

"Remote testing helps get closer to real-world results because users are in environments customized for them."

Ask the Rosenbot
Leah Buley
Closing Plenary: The Crisis of Digital
2020 • Advancing Research 2020
Gold
Crystal Yan
Building a Customer-Centric Culture
2020 • Advancing Research 2020
Gold
Dr. Karl Jeffries
The Science of Creativity for DesignOps
2024 • DesignOps Summit 2020
Gold
Alexis Lucio
Scaling Accessibility Through Design Systems
2022 • Design at Scale 2022
Gold
Carol Scott
Avoid Harming Your Team and Users: Promoting Care and Brand Reputation with Trauma-Informed UX Practices
2025 • Rosenfeld Community
Dan Willis
Enterprise Storytelling Sessions
2016 • Enterprise UX 2016
Gold
Kim Lenox
Leading Distributed Global Teams
2019 • Enterprise Community
Kim Fellman Cohen
Measuring the Designer Experience
2019 • DesignOps Summit 2019
Gold
Yulya Besplemennova
[Demo] Stress-testing GenAI in user research synthesis
2024 • Designing with AI 2024
Gold
Louis Rosenfeld
Welcome / Housekeeping
2023 • Enterprise UX 2023
Gold
Steve Baty
Discussion
2016 • Enterprise UX 2016
Gold
Michelle Morrison
Practice What You Preach
2024 • DesignOps Summit 2020
Gold
Mohammad Hossein Jarrahi
Contextuality problem: Exploring the Benefits of Qualitative and Quantitative Research
2023 • QuantQual Interest Group
Sarah Coyle
Design and Analytics with Sarah Coyle
2020 • DesignOps Community
Alla Weinberg
Workers Are Sick of Change: The Cure is Psychological Safety
2023 • Enterprise UX 2023
Gold
Louis Rosenfeld
GenAI for UXers: A Rosenbot Demo and Discussion
2025 • Rosenfeld Community

More Videos

Billy Carlson

"Don’t get stuck in the refinement stage too early."

Billy Carlson

Ideation tips for Product Managers

December 6, 2022

Sam Proulx

"Both iOS and Android have built-in screen magnification and voice control that don’t require extra software."

Sam Proulx

Mobile Accessibility: Why Moving Accessibility Beyond the Desktop is Critical in a Mobile-first World

November 17, 2022

Dan Willis

"The harder I think, the further I am from the answer."

Dan Willis

Enterprise Storytelling Sessions

May 13, 2015

Michael Polivka

"Single sign-on was going to be really important because I didn’t want any barrier entry for people."

Michael Polivka

Scaling Design through Relationship Maps

November 7, 2017

Karen McGrane

"AI-powered enterprise tools sit on top of the classic IA infrastructure; without it, AI can’t scale effectively."

Karen McGrane Jeff Eaton

AI for Information Architects: Are the robots coming for our jobs?

November 21, 2024

Leisa Reichelt

"If you make rules, put numbers in them, and say them confidently, sometimes people actually do them."

Leisa Reichelt

Opening Keynote: Operating in Context

November 7, 2018

Kim Holt

"Onboarding feels like somebody's holding your hand, even though you're remote, which makes a huge difference."

Kim Holt Emma Wylds Pearl Koppenhaver Maisee Xiong

A Salesforce Panel Discussion on Values-Driven DesignOps

September 8, 2022

Jacqui Frey

"Design ops is not just about design; if we aren’t considering the system, then we’re destined to fail."

Jacqui Frey Alison Rand

Setting the Table for Dynamic Change

October 24, 2019

"Talking about UX ROI as reducing failure is like opening a new restaurant and saying please come because we won’t make you sick."

How to Identify and Increase your "Experience Quotient"

June 15, 2018