Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Heat Map(also: Heatmap, Attention Map, Gaze Map)
- A data visualization technique that uses colour intensity to represent the distribution and density of user attention or interaction on a page or interface. In eye tracking research, heat maps aggregate fixation data from multiple users, with warmer colours (red, orange)…
- Hierarchical Task Analysis(also: HTA)
- A structured method for describing and analyzing tasks by breaking them down into goals, sub-goals, and operations in a hierarchical tree structure. Originally developed for industrial and safety-critical domains, HTA has been adopted in accessibility research to identify where…
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