Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Information Perceptualization(also: Perceptualization)
- Information perceptualization is the mapping of abstract data or information onto perceptual properties across multiple sensory modalities — vision, hearing, touch, and occasionally taste or smell — in a coordinated, multimodal display. It generalises the more familiar notion of…
- Information Rate(also: Throughput, Bandwidth)
- The amount of information successfully communicated per unit of time through a communication channel or interface, measured in bits per second. In HCI and assistive technology evaluation, information rate quantifies how efficiently a user can convey commands or intentions…
- Information Theory(also: Shannon Theory, Mathematical Theory of Communication)
- A mathematical framework developed by Claude Shannon in 1948 for quantifying the transmission, processing, and storage of information. Central concepts include entropy (the measure of uncertainty or unpredictability in a message source), information rate (the reduction of…
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