Glossary

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Ability-Based Design(also: ABD)

A design philosophy that focuses on what users can do rather than what they cannot, adapting systems to leverage each individual's specific abilities. Instead of designing for a "typical" user and then adding accessibility accommodations, ability-based design starts from the…

Access Barriers(also: Barriers to Access)

Obstacles that prevent or impede disabled people from fully participating in activities, accessing services, or using technologies. Access barriers can be physical (inaccessible buildings), digital (websites without screen reader support), attitudinal (employer discrimination),…

Access Conflict(also: Accessibility Conflict, Competing Access Needs)

A situation in which the accessibility requirements of one person conflict with or undermine the accessibility requirements of another person. For example, a student prone to migraines may need low lighting in a classroom, while a student with low vision requires bright, direct…

Accessible Design Methods(also: Inclusive Design Methods)

Design research methodologies that have been adapted or created to enable participation by people with disabilities, ensuring they can contribute as active co-creators rather than passive subjects. Traditional design methods like sketching, storyboarding, card sorting, and…

Accessible Prototyping(also: Inclusive Prototyping)

The practice of adapting prototyping methods and materials to enable participation by people with disabilities, particularly in early-stage design activities. Accessible prototyping goes beyond simply providing alternative materials—it requires holistic adaptation of the entire…

Accommodations(also: Reasonable Accommodations, Workplace Accommodations)

Modifications or adjustments to environments, processes, or practices that enable disabled people to participate equally. In employment contexts, reasonable accommodations may include flexible scheduling, remote work options, modified job duties, assistive technology provision,…

Age-Related Decline(also: Age-Related Impairment, Age-Related Changes)

The gradual reduction in physical, sensory, and cognitive abilities that occurs as part of the natural aging process. Age-related declines that affect technology use include reduced visual acuity (difficulty reading small text and icons), decreased fine motor control (difficulty…

Assistive Technology(also: AT, Adaptive Technology)

Any device, software, equipment, or system that is used to increase, maintain, or improve the functional capabilities of people with disabilities. Assistive technology spans a broad range from low-tech solutions like magnifying glasses and walking canes to high-tech systems such…

BLV Users(also: Blind and Low Vision Users, BLV People)

People who are blind or have low vision, encompassing a spectrum of visual impairments from total blindness to varying degrees of remaining vision (light perception, tunnel vision, blurred vision, etc.). BLV users are a primary user group for many accessibility technologies…

Complex Needs(also: Complex Access Needs, Complex Support Needs)

Complex needs refers to the situation where an individual requires support across multiple areas of functioning due to a combination of physical, sensory, cognitive, communication, or behavioral factors that interact in ways that make standard single-impairment approaches…

Confirmation Dialogue(also: Confirmation Dialog, Verification Prompt)

An interaction pattern where a system summarizes a proposed action and asks the user to confirm before executing it. In accessible calendar design and voice assistant interactions, confirmation dialogues are critical for preventing errors—users want the system to summarize…

Cross-Platform Consistency(also: Platform Consistency, Multi-Platform Accessibility)

The quality of providing a consistent, reliable user experience across different devices, operating systems, and application versions. For blind and low vision users, cross-platform consistency is a fundamental accessibility requirement because they often use multiple devices…

Daily Form(also: Daily Functioning Level)

The concept that a person's physical and cognitive capabilities can vary significantly from day to day due to chronic conditions, pain levels, fatigue, medication effects, sleep quality, and other factors. In accessibility and assistive technology design, daily form challenges…

Error Recovery(also: Error Correction, Error Handling)

The process and mechanisms by which users can identify, understand, and correct errors that occur during interaction with a system. In accessibility contexts, error recovery is particularly important because errors can be harder to detect with assistive technologies—a screen…

Fatigue(also: Disability-Related Fatigue, Physical Fatigue)

A common symptom across many disabilities and chronic conditions characterized by persistent exhaustion that is disproportionate to activity level and not fully relieved by rest. In technology and VR accessibility, fatigue has specific implications: users may have limited energy…

High-Stakes Scenarios(also: Safety-Critical Scenarios)

Situations where errors in AI-generated information could lead to significant safety, health, financial, or social consequences. In the context of visual access technology for BLV users, high-stakes scenarios include medication identification (where misreading a dosage could be…

Hybrid Interaction(also: Multimodal Hybrid Approach)

An interaction design approach that combines multiple input and output modalities, allowing users to switch between them based on task requirements, context, and personal preferences. In accessibility research, the "voice for speed, screen for verification" principle exemplifies…

K-12 Education(also: K-12, Primary and Secondary Education, K through 12)

The span of publicly supported education from kindergarten through 12th grade (approximately ages 5-18), encompassing primary and secondary schooling. In accessibility contexts, K-12 education is a critical focus area because accessible learning tools, curricula, and teacher…

Multimodal Interaction(also: Multimodal Interface)

An interaction approach that combines multiple input and output modalities—such as voice, touch, keyboard, gestures, and visual/audio feedback—to support flexible, accessible user experiences. In accessibility contexts, multimodal interaction is valuable because it allows users…

Multimorbidity(also: Multiple Long-term Conditions, Co-occurring Conditions)

Multimorbidity is the presence of two or more chronic health conditions or long-term impairments in a single individual. It is especially prevalent among older adults and is a major factor in the complexity of accessibility needs. Research shows that multimorbidity is the norm…

Multiple Disabilities(also: Co-occurring Disabilities, Comorbid Disabilities)

The presence of two or more disabilities in a single individual, which may include combinations of physical, sensory, cognitive, mental health, and chronic health conditions. People with multiple disabilities often face compounded access barriers that are greater than the sum of…

Point of Interest(also: POI)

A point of interest (POI) is a specific location or feature in a physical environment that is relevant to a user's navigation or understanding of their surroundings. In accessible wayfinding systems for blind and low-vision users, POIs include landmarks, obstacles, entrances,…

Temporal Factors in Accessibility(also: Time-Based Accessibility, Fluctuating Access Needs)

The recognition that accessibility needs are not static but vary over time due to factors such as daily form (good days versus bad days), fatigue accumulating during use, medication schedules, pain cycles, and progressive conditions. In VR contexts, temporal factors mean that a…

Verification Mechanism(also: Verification System)

A feature or process that allows users to confirm that a system has correctly understood and executed their intended action. In accessible calendar design, verification mechanisms are critical because BLV users cannot quickly visually scan for errors and rely on the system to…

Visual Verification(also: Visual Fact-Checking)

The process of confirming the accuracy of information by visually inspecting the original source material. In accessibility contexts, visual verification represents a fundamental challenge for blind and low vision users who cannot directly compare AI-generated descriptions…

Workshop Accessibility(also: Accessible Workshop Design)

The practice of designing workshops, training sessions, and collaborative events to be fully participable by people with disabilities. Workshop accessibility encompasses multiple dimensions: physical environment (room layout, seating arrangements, accessible facilities),…

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