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• Challenging and Improving Current Evaluation Methods for Colour Identification Aids

  Connor Geddes, David R. Flatla · 2022 · Proceedings of the 24th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS 22)

  This paper critically examines how Colour Vision Deficiency (CVD) aids are evaluated, exposing fundamental flaws in common evaluation practices. CVD affects approximately 5% of the population and impairs the ability to accurately identify and discriminate between colours — a…

  colour vision deficiency · colour blindness · CVD simulation · evaluation methods · colour identification aids

• Toward a User Experience Tool Selector for Voice User Interfaces

  Andreas M. Klein · 2021 · Proceedings of the 18th International Web for All Conference (W4A)

  This doctoral consortium paper proposes the development of a UX tool selector for voice user interfaces (VUIs), presented as a web application that recommends appropriate measurement tools for evaluating VUI quality. Voice assistants such as Alexa, Google Assistant, and Siri…

  voice user interfaces · user experience · evaluation methods · voice assistants · conversational user interfaces

• Effect of Automatic Sign Recognition Performance on the Usability of Video-Based Search Interfaces for Sign Language Dictionaries

  Oliver Alonzo, Abraham Glasser, Matt Huenerfauth · 2019 · Proceedings of the 21st International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS 2019)

  This paper investigates how the performance of automatic sign recognition technology affects user satisfaction when searching for unfamiliar words in an ASL-to-English dictionary. Looking up an unknown sign in ASL is fundamentally harder than looking up an unknown written word:…

  sign language · ASL · sign language recognition · dictionary · Deaf and hard of hearing

• Environmental Factors in Indoor Navigation Based on Real-World Trajectories of Blind Users

  Hernisa Kacorri, Eshed Ohn-Bar, Kris M. Kitani, Chieko Asakawa · 2018 · Proceedings of the 2018 CHI Conference on Human Factors in Computing Systems

  This paper addresses a methodological blind spot in blind-navigation research: studies typically report localization accuracy and completion time, but say almost nothing about how the physical environment itself shapes where users go wrong. The authors argue that the same…

  indoor navigation · turn-by-turn navigation · blindness · visual impairment · assistive technology

• Evaluating the Usability of Automatically Generated Captions for People who are Deaf or Hard of Hearing

  Sushant Kafle, Matt Huenerfauth · 2017 · Proceedings of the 19th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS '17)

  This paper addresses a fundamental problem in automatic captioning for Deaf and Hard of Hearing (DHH) users: the standard metric used to evaluate automatic speech recognition (ASR) systems — Word Error Rate (WER) — poorly predicts how usable the resulting captions actually are…

  captioning · automatic speech recognition · deaf and hard of hearing · evaluation methods · natural language processing

• Usage of Subjective Scales in Accessibility Research

  Shari Trewin, Diogo Marques, Tiago Guerreiro · 2015 · ASSETS '15: Proceedings of the 17th International ACM SIGACCESS Conference on Computers & Accessibility

  This methodological paper investigates whether positive response bias affects subjective ratings in accessibility research—a critical concern given that Likert-type items are widely used to evaluate assistive technologies. The authors pursued two complementary approaches: a…

  research methodology · Likert scales · response bias · usability testing · accessibility research

• HEUA: A Heuristic Evaluation with Usability and Accessibility Requirements to Assess Web Systems

  Ana Luiza Dias, Renata Pontin de Mattos Fortes, Paulo Cesar Masiero · 2014 · Proceedings of the 11th Web for All Conference (W4A)

  This paper from the University of Sao Paulo presents HEUA (Heuristic Evaluation with Usability and Accessibility), a questionnaire-based instrument that integrates usability and accessibility assessment into a single evaluation framework for web systems. The authors argue that…

  accessibility testing · usability testing · heuristic evaluation · evaluation methods · web accessibility

• Multilingual Website Assessment for Accessibility: A Survey on Current Practices

  Silvia Rodríguez Vázquez, Anton Bolfing · 2013 · Proceedings of the 15th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS)

  This short paper presents results from a survey of 67 web accessibility professionals exploring how multilingual websites are assessed for accessibility. The authors note that when a monolingual website is localized into multiple languages, the accessibility level achieved in…

  web accessibility · multilingual web · localization · accessibility assessment · internationalization

• Methodology for Identifying and Solving Accessibility Related Issues in Web Content Management System Environments

  Juan Miguel López, Afra Pascual, Cristina Menduiña, Toni Granollers · 2012 · Proceedings of the International Cross-Disciplinary Conference on Web Accessibility (W4A)

  This paper presents a nine-step iterative methodology for identifying and resolving accessibility issues in web content management system (CMS) environments. The authors address the growing problem that while CMSs like OpenCMS and Typo3 enable non-technical users to manage web…

  content management systems · WCAG compliance · ATAG · web accessibility · evaluation methods

• A comparative test of web accessibility evaluation methods

  Giorgio Brajnik · 2008 · Proceedings of the 10th International ACM SIGACCESS Conference on Computers and Accessibility (Assets '08)

  This paper presents a controlled laboratory experiment comparing two web accessibility evaluation methods: conformance review (CR) and barrier walkthrough (BW). Conformance review is the traditional approach where evaluators check whether a page satisfies a checklist of criteria…

  accessibility evaluation · conformance testing · barrier walkthrough · web accessibility · WCAG

• Measuring Website Usability for Visually Impaired People - A Modified GOMS Analysis

  Henrik Tonn-Eichstädt · 2006 · Proceedings of the 8th International ACM SIGACCESS Conference on Computers and Accessibility (Assets '06)

  This paper adapts the GOMS (Goals, Operators, Methods, Selection rules) model — a well-established HCI method for estimating task execution times — to measure website usability specifically for blind screen reader users. The author argues that accessibility is fundamentally a…

  screen readers · usability · web accessibility · GOMS · braille

• "Beyond Perceivability": Critical Requirements for Universal Design of Information

  Takashi Kato, Masahiro Hori · 2006 · Proceedings of the 8th International ACM SIGACCESS Conference on Computers and Accessibility (Assets '06)

  This paper argues that accessibility discussions focus too narrowly on perceivability — making information visually, audibly, or tactilely available — while neglecting the equally critical requirement of cognitive understandability. The authors contend that information should…

  cognitive accessibility · cognitive usability · universal design · cognitive walkthrough · evaluation methods

• Evaluation of Scanning User Interfaces Using Real-Time-Data Usage Logs

  Peter O'Neill, Chris Roast, Mark Hawley · 2000 · Proceedings of the Fourth International ACM Conference on Assistive Technologies (Assets '00)

  This paper from Sheffield Hallam University and Barnsley District General Hospital presents a novel approach to evaluating electronic assistive technology (EAT) for people with severe disabilities through automated analysis of real-time usage logs. The research focuses on the…

  switch access · scanning interface · assistive technology · cerebral palsy · usage analytics

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