Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Editorial Enunciation(also: Visual Enunciation)
- A semiotic concept describing how the visual layout and organisation of an interface communicates meaning beyond the content it contains. Editorial enunciation encompasses the spatial arrangement, sizing, positioning, and visual hierarchy of interface elements — all of which…
- Emotional Design
- A framework developed by Don Norman describing how people evaluate and form attachments to products through three cognitive levels: visceral (immediate sensory and aesthetic responses), behavioral (functional performance and usability), and reflective (personal meaning,…
- Ergonomics(also: Human factors engineering)
- The scientific discipline concerned with understanding interactions between humans and other elements of a system, and the profession that applies theory, principles, data, and methods to design in order to optimize human well-being and overall system performance (IEA…
- Execution Gap(also: Gulf of Execution)
- From Don Norman's model of human-computer interaction, the distance between a user's goals and the physical actions required to achieve them using a given system. A system with a wide execution gap forces users to translate what they want into technical commands, parameters, or…
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