Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Dark Mode(also: Dark Theme, Night Mode)
- A display setting that uses light-colored text and interface elements on a dark background, reversing the typical light-mode color scheme. Dark mode can benefit users with light sensitivity, photophobia, or certain visual conditions by reducing screen glare and brightness.…
- Default Delivery Context(also: DDC)
- A baseline set of device capabilities defined by the W3C Mobile Web Best Practices specification, used as a reference point for evaluating mobile web content. The Default Delivery Context specifies minimum characteristics such as a 120-pixel screen width, XHTML Basic 1.1…
- Delivery Context
- Delivery context is a term defined by the W3C Device Independence Working Group to describe the set of attributes that characterize the environment in which web content is delivered and consumed. This includes device capabilities (screen size, supported markup languages, color…
- Device Switching(also: Device Transition, Cross-Device Interaction)
- The process of moving between different computing devices to complete tasks, such as switching from a smartphone to a laptop or tablet. For people with motor impairments, particularly wheelchair users, device switching presents significant accessibility barriers because it often…
- Digital Financial Inclusion(also: Financial Technology Accessibility, Inclusive Fintech)
- Ensuring that digital financial services — including mobile banking, mobile money (like M-Pesa), online payments, and digital wallets — are accessible to and usable by people with disabilities. Digital financial inclusion is a critical accessibility issue because financial…
- Disambiguation(also: Target Disambiguation, Touch Disambiguation)
- In accessible interface design, disambiguation is the process of resolving ambiguity when a user's input could correspond to more than one interactive target. This commonly occurs on touchscreens where small, densely packed elements make precise selection difficult, particularly…
- Dynamic Type(also: Dynamic Text Size, Text Scaling, Font Scaling)
- An iOS accessibility feature that allows users to adjust the system-wide text size to meet their reading needs, from very small to very large. Apps that support Dynamic Type automatically reflow and resize their text content when the user changes their preferred text size in…
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