Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Keystroke-Level Model(also: KLM)
- A simplified predictive model from human-computer interaction research, originally developed by Card, Moran, and Newell, that estimates task completion time by decomposing user interactions into elementary operations such as keystrokes, pointing movements, mouse clicks, and…
- Keystrokes Per Character(also: KSPC)
- A metric used to evaluate the efficiency of text-entry methods by measuring the average number of keystrokes required to produce each character of text. A lower KSPC indicates a more efficient input method. For standard MultiTap on a 12-key phone keypad, the theoretical best…
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