using the keystroke-level model for designing user interface on middle-sized touch screens
The Keystroke-Level Model was developed to predict accurately task execution time for mouse-and-keyboard systems. Middle-sized touch screens are becoming much more popular so it is important to determine whether KLM can provide useful predictions for these interfaces as well. The KLMs were created using special software CogTool for three touch screen interfaces for integrated control systems and were compared to experimental data. The results showed that the KLM prediction error for middle-sized touch screens reached less than 5\%. This conclusion is that KLM has acceptable accuracy level in this environment for making predictions for the task execution times.
keystroke-level model cognitive modeling