Glossary

Searchable terminology from accessibility, web standards, and related fields.

6660 terms — page 166 of 333

Laddering Method (Laddering Technique, Laddering Interview)
A qualitative-quantitative research method used in user experience research to understand why users value certain product features. Rooted in Means-End theory, the technique involves asking participan…
Lambda Notation (Lambda Math Code, Lambda Braille)
A mathematical Braille notation system developed as part of the Lambda project, designed specifically for use with computers and digital documents. Lambda is an XML-based code built on a completely ne…
Landmark (Navigation Landmark, Environmental Landmark)
A distinctive environmental feature used as a reference point during navigation and wayfinding. In Orientation and Mobility training for people with visual impairments, landmarks are categorized by th…
Landmark Detection (Acoustic Landmark Detection, Stevens Landmark Theory)
Landmark detection is a speech analysis method based on Kenneth Stevens' acoustic model of speech production, which identifies perceptually significant points in the acoustic signal where listeners ex…
Landmark Extraction (Keypoint Detection, Skeletal Tracking)
A computer vision technique that identifies and tracks specific anatomical points (landmarks or keypoints) on the human body, hands, and face from images or video. In sign language technology, landmar…
Landmark Knowledge
A type of spatial knowledge involving the recognition and memory of distinctive features or objects in an environment that serve as reference points for navigation. Landmarks are fixed objects at spec…
Landmark Navigation (Navigate by Landmarks, ARIA Landmark Navigation)
A screen reader navigation strategy that allows users to jump between major structural regions of a webpage defined by ARIA landmark roles (banner, navigation, main, complementary, contentinfo, search…
Landmark Object (Navigation landmark, Target object)
A specific physical object that serves as the terminal target of a navigation task — for example, an empty chair in a waiting area, a push-button at an elevator, a ticket barrier, a door handle, or a …
Landmark Theory (Stevens Landmark Theory)
A theoretical framework in speech science developed by Kenneth N. Stevens proposing that listeners extract phonetic information from acoustically abrupt events called landmarks in the speech signal. L…
Landmark-Based Navigation (Landmark Navigation, Landmark-Based Wayfinding)
A wayfinding strategy that uses recognisable environmental features such as buildings, signs, or other prominent objects as reference points for giving directions, rather than relying solely on street…
Landmarks (ARIA Landmarks, Page Landmarks, Landmark Regions)
Designated regions of a web page that provide structural navigation points for assistive technology users. ARIA landmark roles include banner, navigation, main, complementary, contentinfo, search, for…
Language Access (Language Services, Linguistic Access)
The provision of services and resources that enable people with limited proficiency in the dominant language to meaningfully access information, programmes, and services. Language access encompasses p…
Language Accessibility (Linguistic Accessibility)
The practice of ensuring that information, services, and digital content are available and comprehensible in the languages that people actually use and prefer. Language accessibility extends beyond tr…
Language Acquisition (Language Development, Language Learning)
The process by which humans develop the ability to perceive, produce, and use language to communicate. In deaf children, language acquisition presents unique challenges: 90% of deaf children are born …
Language Deprivation (Linguistic Deprivation)
The condition that occurs when children do not receive sufficient accessible language input during critical developmental periods, leading to atypical neural development, cognitive delays, and lifelon…
Language Erasure (Linguistic Erasure, Language Flattening)
The process by which a language's unique characteristics, variations, dialects, and cultural significance are diminished, homogenized, or eliminated — often through the dominance of a majority languag…
Language Immersion
An approach to language learning in which the learner is surrounded by and continuously exposed to the target language in natural, meaningful contexts rather than through isolated instruction. In the …
Language Impairment (Language Disorder, Language Disability)
A reduced ability to understand or produce spoken, written, or signed language that is not due to hearing loss, intellectual disability, or lack of exposure to language. Language impairments can be de…
Language Justice (Linguistic Justice)
A framework that advocates for the equal valuing and inclusion of all languages in social, educational, and technological contexts, challenging the dominance of English and other majority languages. I…
Language Localization (L10N, Localization)
The process of adapting a product, application, or content for a specific language, culture, and region, including translation, cultural adaptation of imagery and symbols, currency and date formats, a…