Glossary

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Text Customization(also: User Text Preferences, Text Personalization)

The ability for users to adjust the visual presentation of text content to suit their individual reading needs, including modifying font size, typeface, line spacing, letter spacing, color contrast, and background color. Text customization is frequently recommended as an…

UEQ-S(also: User Experience Questionnaire - Short, Short UEQ)

UEQ-S is an eight-item short version of the User Experience Questionnaire, a standardised survey instrument that measures subjective user experience on a 7-point semantic-differential scale. It captures two broad factors: pragmatic quality (supportive, easy, efficient, clear)…

Usability(also: Ease of Use)

Usability is the extent to which a product, system, or service can be used by specified users to achieve specified goals with effectiveness, efficiency, and satisfaction in a specified context of use, as defined by ISO 9241-11. It goes beyond mere accessibility compliance to…

Usability Testing(also: Usability Evaluation, User Testing)

A research method in which representative users attempt realistic tasks with a product or prototype while researchers observe and collect data on effectiveness, efficiency, and satisfaction. In accessibility contexts, usability testing with people with disabilities is essential…

Usage analytics(also: Telemetry, Interaction logging)

The collection and analysis of data about how users interact with a technology system in real-world settings, including session duration, feature usage frequency, settings preferences, and interaction patterns over time. In assistive technology research, large-scale usage…

User Engagement Scale(also: UES, UES-SF)

A validated self-report questionnaire for measuring user engagement with digital systems across dimensions including focused attention, perceived usability, aesthetic appeal, and reward. Developed by O'Brien and Toms and later shortened to the 12-item UES Short Form (UES-SF),…

User Experience(also: UX)

A person's perceptions and responses resulting from the use or anticipated use of a product, system, or service, encompassing emotions, beliefs, preferences, physical and psychological responses, and behaviours. Defined by ISO 9241-210, user experience goes beyond usability…

User Experience Questionnaire(also: UEQ, UEQ-S, Short UEQ)

A standardised self-report instrument, developed by Schrepp and colleagues, that captures a user's subjective impression of a product across dimensions such as attractiveness, efficiency, perspicuity, dependability, stimulation, and novelty via pairs of contrasting adjectives…

User Study(also: Usability Study, User Evaluation)

A research method in which participants interact with a system, tool, or interface while researchers observe, measure, and collect feedback on the user experience. User studies in accessibility research are essential for evaluating whether technologies actually meet the needs of…

User Testing(also: User Evaluation, End-User Testing)

A research method in which representative users perform tasks with a product or system while evaluators observe, record, and analyze their behavior. In accessibility contexts, user testing with people with disabilities is considered essential because it reveals real-world…

Verbosity(also: Verbosity Level, Screen Reader Verbosity)

Verbosity refers to the level of detail that an assistive technology — particularly a screen reader or voice browser — provides when announcing interface elements and content. Most screen readers allow users to adjust verbosity settings to control how much contextual information…

Verified Answer Marker(also: verified solution marker, accepted answer marker)

A visible indicator on a forum or Q&A platform signalling that a particular reply has been confirmed as correct or useful — for example, Stack Overflow's green tick, Apple Discussion Forums' top-ranked reply, or moderator-endorsed 'solution' badges. Verified markers reduce the…

Voice Augmentation(also: Audio Augmentation, Voice-Based Augmentation)

A technique for enhancing user interfaces by adding spoken audio feedback to supplement visual information on screen. Voice augmentation provides contextual support through spoken confirmations of user input, notifications of errors or status changes, suggestions for next…

Voice user interface(also: VUI, Conversational interface, Voice interface)

A human-computer interaction paradigm that uses speech as the primary input and audio output as the primary feedback channel. Voice user interfaces range from simple command-and-response systems to conversational agents with natural language understanding. VUIs offer significant…

Voice-First Design(also: Voice-First Interface, Audio-First Design)

A design approach for applications and interfaces where voice is the primary input and output modality, with visual elements being secondary or absent. Voice-first design is particularly relevant for accessibility tools serving visually impaired users, where the entire user…

Web Adaptation(also: Content Adaptation, Web Content Adaptation)

The process of automatically modifying web content to improve usability, accessibility, or presentation for specific users, devices, or contexts. Web adaptation techniques include restructuring page layouts, generating content summaries, creating hierarchical outlines of page…

Web Aesthetics(also: Visual Aesthetics, Website Aesthetics)

The study and application of visual appeal in web design, encompassing how users perceive and respond to the visual qualities of websites. Research has identified two main dimensions of web aesthetics: classical aesthetics (characterised by simplicity, clarity, and orderliness)…

Web Interaction Environment(also: WIE)

A modelling concept defined as a particular audience group's set of intrinsic characteristics upon which tailored evaluation procedures can be applied to a website. Introduced by Lopes and Carrico (2008), WIEs organize user characteristics across four domains: Users (abilities,…

Web Page Preview(also: Page Preview, Link Target Preview)

A summary or representation of a web page's content provided to users before they navigate to that page, allowing them to assess its relevance without committing to a full visit. For sighted users, visual previews like thumbnails or pop-up snippets serve this purpose. For screen…

White Glove Service

A hospitality concept denoting personalized, detail-oriented service characterized by five qualities: anticipatory assistance (acting before being asked), discretion and privacy, attention to detail, personalization, and seamless problem resolution. In accessibility and…

Wireframe(also: Wireframing, UI Mockup, Page Schematic)

A visual guide representing the skeletal framework of a website or application, showing page layout, content placement, and navigation structure before detailed design begins. Wireframes are fundamental to web development planning and information architecture. However,…