Glossary
Searchable terminology from accessibility, web standards, and related fields.
6660 terms — page 125 of 333
- Force Feedback Joystick (Haptic Joystick, Rumble Joystick)
- An input device that combines a traditional joystick with motors or actuators that apply physical resistance, vibration, or directional forces to the user's hand, providing tactile information about t…
- Force Field (Haptic Force Field, Virtual Force Field)
- In haptic interface design, a computational model that defines attractive or repulsive forces at each point in a two-dimensional workspace, used to represent graphical user interface elements as tacti…
- Force-Sensing Resistor (FSR, Force Sensor)
- A sensor that decreases in electrical resistance when physical pressure is applied to its surface. Force-sensing resistors are commonly used in assistive technology and accessibility applications to c…
- Force-sensitive resistor (FSR, Pressure sensor)
- An electronic sensor whose electrical resistance changes in response to applied physical pressure, enabling detection of both the presence and intensity of touch or force. In accessibility application…
- Forced Alignment (Phonetic Alignment, Phone-Level Alignment)
- Forced alignment is an automatic speech processing technique that aligns a speech recording with its known transcription at the phoneme or word level. Unlike free speech recognition which determines t…
- Forced Intimacy
- Forced Intimacy is a concept coined by disability and transformative justice activist Mia Mingus that describes the experience of disabled people being expected to share very personal information with…
- Foreground Sound (FS)
- In sonification-based web accessibility interfaces, a non-speech audio cue that represents individual content elements within a web page, such as links, images, or text blocks. Foreground sounds are d…
- Forgotten Margins
- A term describing disabled communities and populations that remain overlooked by mainstream accessibility research and practice, typically those at the intersection of disability and other forms of ma…
- Forking (Content Forking, Branching)
- A collaborative mechanism borrowed from software version control where a user creates a copy of an existing work to modify independently while preserving the original. In audio description authoring, …
- Form Accessibility (Accessible Forms, Form A11y)
- The practice of designing and implementing digital forms so they can be effectively completed by people using assistive technologies, particularly screen readers. Key requirements include: every form …
- Form Factor (Device Form Factor, Handset Form Factor)
- Form factor refers to the overall physical size, shape, weight, and mechanical configuration of a device — for mobile phones this includes distinctions like candy-bar, clamshell (flip), slide-out keyb…
- Form Label (Input Label, Form Field Label)
- A text label programmatically associated with an interactive form control (such as a text input, button, checkbox, or dropdown) that identifies the purpose or function of that control to all users. In…
- Form Labeling (Form Labels, Input Labels, Programmatic Labels)
- The practice of providing descriptive text labels that are programmatically associated with their corresponding form input fields, enabling screen readers to announce what information is expected in e…
- Formal Analysis (Formal Analysis (Art))
- An art-historical method that examines an artwork's observable formal attributes — composition, color, line, light, texture, scale, space, and style — and how they are organized, independent of biogra…
- Formal Caregiver (Professional Caregiver, Paid Caregiver)
- A formal caregiver is a paid, trained professional who provides care — personal, medical, or social — to a disabled, ill, or ageing person, typically through a healthcare organisation, home-care agenc…
- Formant (Vocal Formant, Formant Frequency)
- A concentration of acoustic energy around a particular frequency in the speech signal, produced by the resonance of the vocal tract. Formants are labeled sequentially (F1, F2, F3, etc.) from lowest to…
- Formant Synthesis (Rule-based Synthesis, Parametric Synthesis)
- A text-to-speech method that generates synthetic speech by modeling the acoustic properties of human vocal production, particularly formants (resonant frequencies of the vocal tract). Rather than usin…
- Formative Evaluation (Formative Usability Testing, Formative Assessment)
- Usability evaluation conducted early in the design process using prototypes, mockups, or wireframes to identify design problems and inform improvements. Formative testing is qualitative and iterative,…
- Formulaic Language (Formulaic Speech, Routine Language)
- Pre-established, conventionalised phrases and expressions that occur predictably in specific social or transactional contexts, such as greetings, service transactions, or ceremonial speech. In accessi…
- Foundation Model (Large Pretrained Model, General-Purpose AI Model, GPAI)
- A foundation model is a large AI model trained on broad, general-purpose data — typically at massive scale using self-supervised or unsupervised learning — that can be adapted (fine-tuned) for a wide …