Usability and Accessibility Issues in the Localization of Assistive Technology
Ira Jhangiani · 2006 · Proceedings of the 8th International ACM SIGACCESS Conference on Computers and Accessibility (Assets '06) · doi:10.1145/1168987.1169065
Summary
This doctoral consortium paper from Virginia Polytechnic Institute examines the usability and accessibility challenges that arise when assistive technology software designed in one country is localized for users with disabilities in another. The research evaluates a portable USB-based assistive technology package developed by a US company, containing tools for users with print disabilities including an electronic text reader/note-taker and a text-to-audio converter. The software was evaluated by six partially sighted participants aged 20-34 in Mumbai, India — four were congenitally partially sighted and one acquired the disability at age 18. All were experienced computer users of Indian origin. The evaluation used a semi-structured interview protocol where participants completed tasks with both tools (reading a paragraph aloud and converting a Word document to audio), followed by questions about accessibility and usability. Sessions lasted about one hour, were video-recorded, and transcripts were analyzed using content analysis with codes from the Needs Analysis and Requirements Acquisition (NARA) method to systematically map user requirements into design guidelines.
Key findings
The study found that localizing assistive technology goes well beyond translating the interface language. Participants raised issues spanning usability, accessibility, and cultural preferences that would not be caught by standard accessibility compliance testing. Video transcription captured not just verbal feedback but contextual meanings conveyed through pauses, laughter, sighs, and facial expressions, providing richer data than standard usability metrics. The requirements identified were categorized into design guidelines organized by interface aspects and driven by three dimensions: usability, accessibility, and cultural preferences. The research highlights that software which meets technical accessibility standards can still be difficult to use for people with disabilities in different cultural contexts — for example, a visually intuitive interface may be appealing to sighted users but confusing when read aloud by text-to-speech for partially sighted users who rely on synthetic speech as their primary interface. The complete set of guidelines provides a framework for adapting assistive technology interfaces for international markets, specifically addressing the population with disabilities in India.
Relevance
This paper raises an important and often overlooked issue: the intersection of disability and cultural/linguistic diversity in assistive technology design. Most assistive technology is developed in North America or Europe and then distributed globally, but the needs of users with disabilities vary across cultures in ways that go beyond language translation. The study's finding that technical accessibility compliance does not ensure usability across cultural contexts is particularly relevant as assistive technology increasingly reaches global markets. For accessibility practitioners, this highlights that user testing with diverse populations — not just diverse in terms of disability, but also in terms of cultural background, language, and technology experience — is essential for creating truly universal assistive technology. The research also demonstrates the value of rich qualitative methods (video recording, contextual analysis) over purely quantitative usability metrics when evaluating assistive technology with diverse user populations, as non-verbal cues and cultural context provide crucial design insights.
Tags: assistive technology · localization · internationalization · usability · low vision · partial sight · design guidelines · universal design · cultural accessibility