Keystroke-Level Model Analyzer
Record a web task flow and convert it into an original KLM breakdown.
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Keystroke-Level Model Analyzer helps you compare web task flows quickly by turning interaction traces into auditable Keystroke-Level Model (KLM) estimates.
Inspired by Card, Moran, and Newell's The Psychology of Human-Computer Interaction and Jef Raskin's The Humane Interface, the extension records a web task flow, converts the interaction trace into K, P, M, H, and R operators, and reviews the estimated expert execution cost with a step-by-step breakdown.
Use it to compare prototype versions, validate design ideas, and identify the highest-cost step in a flow.
Features:
- Record web task flows on prototypes and real web apps
- Auto-capture clicks, typing counts, scroll bursts, and response candidates
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