Glossary
Searchable terminology from accessibility, web standards, and related fields.
6660 terms — page 154 of 333
- Inflecting Verb (Spatial Verb, Agreement Verb, Directional Verb)
- A category of sign language verbs that change their movement path, direction, or orientation based on the spatial locations associated with their subject and object. In American Sign Language, verbs l…
- Informal Caregiver (Family Caregiver, Unpaid Caregiver)
- A person, typically a family member, friend, or neighbor, who provides unpaid assistance to someone with a disability, chronic illness, or age-related needs. Informal caregivers often help with daily …
- Informal Carer (Informal Caregiver, Family Carer, Unpaid Carer)
- A person who provides regular care and support to a family member, friend, or neighbour who has a disability, chronic illness, mental health condition, or age-related needs, without being paid as a pr…
- Informal Learning (Informal Education, Free-Choice Learning)
- Learning that occurs outside formal educational settings, driven by curiosity, personal interest, and voluntary engagement rather than structured curricula and assessments. Science museums, workshops,…
- Information Appliance (Smart Appliance, Dedicated Device)
- A computing device designed for a specific, well-defined purpose that is communication-oriented and easy to use, in contrast to a general-purpose computer. Information appliances typically have reduce…
- Information Architecture (IA)
- The structural design of information environments, encompassing the organization, labeling, navigation, and search systems that help users find and manage information effectively. In digital accessibi…
- Information Extraction (IE, Data Extraction)
- The process of automatically identifying and retrieving structured information from unstructured or semi-structured data sources. In the context of accessibility and data visualization, information ex…
- Information Foraging (Information Foraging Theory)
- A theoretical framework from cognitive science that models how people search for and navigate to information, drawing an analogy to animal foraging behaviour. Users assess "information scent" — cues l…
- Information Foraging Theory (IFT)
- A theory proposed by Pirolli and Card describing how people seek information by adaptively optimising for maximum information gain with minimum effort, analogous to animal foraging. Key constructs inc…
- Information Graphics (Infographics, Data Graphics, Statistical Graphics)
- Visual representations of data, information, or knowledge designed to present complex information quickly and clearly. Common types include bar charts, line graphs, pie charts, scatter plots, and more…
- Information Hierarchy (Content Hierarchy, Information Architecture)
- The organization and prioritization of information elements in an interface, determining what users encounter first and how content is structured for navigation. In accessibility, information hierarch…
- Information Overload (Cognitive Overload, Information Overwhelm)
- The state of being overwhelmed by the volume of information presented, making it difficult to identify relevant content, make decisions, or complete tasks effectively. In web accessibility contexts, i…
- Information Perceptualization (Perceptualization)
- Information perceptualization is the mapping of abstract data or information onto perceptual properties across multiple sensory modalities — vision, hearing, touch, and occasionally taste or smell — i…
- Information Power
- A sample-adequacy principle for qualitative research, proposed by Malterud, Siersma, and Guassora (2016), which holds that the more information a study sample holds that is relevant to the research qu…
- Information Quality (IQ, Data Quality)
- A measure of how well information meets the needs of its consumers, encompassing dimensions such as accuracy, completeness, currency, relevance, and reliability. In accessibility and disability contex…
- Information Rate (Throughput, Bandwidth)
- The amount of information successfully communicated per unit of time through a communication channel or interface, measured in bits per second. In HCI and assistive technology evaluation, information …
- Information Representation (information artifact, knowledge representation)
- An information representation is any structured artifact that encodes data or knowledge and allows people to interact with that content — examples include documents, spreadsheets, slideshows, diagrams…
- Information Retrieval (IR)
- The science of searching for and extracting relevant information from large collections of documents or data. In accessibility, information retrieval techniques such as keyword extraction, text summar…
- Information Scent (Information Smell)
- A concept from information foraging theory that describes the strength of cues in a user interface that indicate whether a particular path (link, button, menu item) will lead to desired information or…
- Information Seeking (Information Retrieval Behavior, Information Search)
- The process of actively looking for specific information to answer a question, complete a task, or satisfy an information need. Information seeking on the web involves formulating queries, navigating …