Glossary

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

25 results found in voice interface.

Amazon Alexa (Alexa, Echo)
A cloud-based voice assistant developed by Amazon, available on Echo smart speakers, Echo Show smart displays, and third-party devices. Users interact with Alexa through wake-word-activated voice comm…
Aural Interface (Voice Interface, Voice-Controlled Interface, Voice User Interface)
An aural interface is a user interface that relies primarily on spoken language for both input (voice commands) and output (spoken responses). Examples include Amazon Alexa, Apple Siri, and Google Ass…
Chatbot (Virtual Assistant, Conversational Agent, Dialog System)
A software application that uses text or speech to conduct conversations with users, simulating human-like dialogue to provide information, perform tasks, or guide users through processes. In accessib…
Conversational Assistant (Voice Assistant, Virtual Assistant, Intelligent Personal Assistant)
A software application that uses natural language processing and speech recognition to interact with users through spoken or typed conversation, providing information, performing tasks, and controllin…
Conversational Interface (Conversational UI, Voice User Interface, VUI)
A user interface that enables interaction through natural language, either spoken or typed, allowing users to communicate with a system using conversational dialogue rather than traditional graphical …
Conversational User Interface (CUI, Conversational Interface, Dialogue Interface, CVUI)
A user interface that enables interaction through natural language conversation, either via voice (spoken dialogue) or text (chat). Conversational user interfaces encompass voice assistants, chatbots,…
Dialog Act (Dialogue Act, Speech Act)
A classification label representing the communicative intention behind a spoken or written utterance in a conversational system. In the context of accessible technology, dialog acts are used to interp…
IBM Home Page Reader (Home Page Reader, HPR)
IBM Home Page Reader (HPR) was a pioneering voice browser developed by IBM that provided audio-based web browsing for people with visual disabilities. Unlike screen readers that operate as an overlay …
Intelligent Personal Assistant (IPA, Virtual Assistant, AI Assistant, Digital 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 Assista…
Intelligent Virtual Assistant (IVA, Virtual Assistant, AI Assistant, Conversational Agent)
A software-based agent that uses artificial intelligence, natural language processing, and speech recognition to understand and respond to human voice or text commands. Intelligent Virtual Assistants …
Interactive Voice Response (IVR, Voice Response System)
A telephony technology that allows users to interact with automated systems using voice commands or keypad input. IVR systems are particularly valuable for accessibility in low-income settings because…
Personal Assistant (Virtual Assistant, Digital Assistant, Voice Assistant, Smart Assistant)
A software agent that can perform tasks or provide services based on user commands or queries, typically through voice interaction. Popular examples include Amazon Alexa, Google Assistant, Apple Siri,…
Push-to-Talk (PTT, Push to talk)
An interaction pattern where a user presses and holds (or taps) a dedicated button to signal the start of an input — historically used in two-way radios, now common in voice assistants and conversatio…
Put That There (Put-That-There)
A pioneering multimodal interactive system built at MIT's Architecture Machine Group (1979-1980), reported by Bolt (1980) and further developed by Schmandt and Hulteen (1982). Users seated in a 'media…
Speech Repair (Self-Correction, Speech Self-Repair, Command Correction)
Speech repair is the process of correcting or modifying a spoken utterance after it has been produced, either within the same turn or in a subsequent one. In natural conversation, speakers commonly in…
Spoken Dialog System (SDS, Voice Dialog System, Conversational AI)
A computer system that uses speech as both input and output to conduct goal-oriented conversations with users. Unlike simple voice command systems, spoken dialog systems can handle multi-turn exchange…
Spoken Web (World Wide Telecom Web, WWTW, Telecom Web)
An alternative web paradigm designed for people in developing regions who are excluded from the traditional World Wide Web by illiteracy, unaffordability, or lack of locally relevant content. In the S…
Voice Browser (Voice Web Browser, Audio Browser)
A voice browser is a type of web browser that presents web content through speech output and accepts voice or keyboard input rather than relying on visual display. Voice browsers convert web page cont…
Voice User Interface (VUI)
A user interface that enables interaction with a device or system through spoken voice commands and audio responses. Voice user interfaces use speech recognition to interpret user input and text-to-sp…
Voice User Interface (VUI, Voice Command Interface, Voice Interface)
An interface that allows users to interact with a device or application through spoken language commands rather than touch, mouse, or keyboard input. Voice user interfaces use automated speech recogni…