Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- ICT4D(also: Information and Communication Technologies for Development, ICTD)
- A field of research and practice focused on how information and communication technologies can be designed, deployed, and used to support social and economic development, particularly in low- and middle-income countries. ICT4D examines the unique social, cultural, and…
- IDE(also: Integrated Development Environment)
- A software application that provides a comprehensive environment for writing, testing, and debugging code. Common IDEs include Visual Studio Code, IntelliJ IDEA, and Xcode. In accessibility contexts, IDEs are important because they can host plugins and extensions that help…
- ISCII(also: Indian Script Code for Information Interchange)
- A character encoding standard developed by the Government of India for representing Indian language text in digital systems. ISCII uses a single encoding scheme that can represent characters from all major Indian scripts by exploiting their common phonetic structure — each…
- Image Processing(also: Digital Image Processing)
- The use of computational algorithms to analyze, enhance, transform, or extract information from digital images. In accessibility, image processing techniques are applied to convert visual content into accessible formats for blind and visually impaired users, including generating…
- Immersive Media(also: Immersive Content, Immersive Technology)
- Digital content and technologies designed to create a sense of presence and embodiment by surrounding users with stimuli that engage multiple senses. This includes 360-degree video, virtual reality, augmented reality, and mixed reality experiences. Making immersive media…
- Inertial Sensors(also: IMU, Inertial Measurement Unit)
- Electronic sensors that measure motion and orientation, typically including accelerometers (measuring acceleration/tilt), gyroscopes (measuring rotation), and magnetometers (measuring magnetic field/compass heading). In accessibility applications, inertial sensors enable indoor…
- Information Appliance(also: 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 reduced functionality and complexity compared to desktop or laptop computers, making…
- Infrared(also: IR, Infrared Communication)
- A wireless communication technology that uses infrared light to transmit data over short distances, commonly used in assistive technology for line-of-sight data exchange between devices. In accessibility applications, infrared transmission has been used in systems like Talking…
- Instructional Technology(also: Educational Technology, EdTech)
- Digital technologies intentionally designed and used for teaching and learning purposes, including learning management systems (Google Classroom, Canvas), educational software (Khan Academy, MyMathLab), student response systems (Kahoot), digital textbooks, and assessment…
- Intelligent Personal Assistant(also: IPA, Virtual Assistant, AI Assistant)
- A software agent that uses natural language processing and speech recognition to perform tasks, answer questions, and control devices on behalf of a user. Examples include Amazon Alexa, Google Assistant, Apple Siri, and Microsoft Cortana. While intelligent personal assistants…
- Interactive Television(also: iTV, Interactive TV)
- Interactive television (iTV) refers to television systems that allow viewers to interact with content beyond simply watching, through features such as voting on polls, accessing supplemental information, navigating menus, and using applications displayed on the TV screen. iTV…
- Internet of Things(also: IoT)
- A network of physical devices embedded with sensors, software, and connectivity that enables them to collect and exchange data over the internet. In accessibility contexts, IoT devices—including smart speakers, connected thermostats, automated locks, and wearable health…
- Interoperability
- The ability of different systems, devices, applications, or products to connect and communicate with each other in a coordinated way, without requiring special effort from the user. In accessibility, interoperability is critical because assistive technologies must be able to…
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