FITTS' Law Calculator & GOMS Spreadsheet
FITTS’ Law Calculator estimates the time for younger and older adults to move a limb to a target. It provides several estimates based on different Fitts’ Law formulas.
The GOMS Spreadsheet shows calculations for a Goals, Operators, Methods, Selection rules (GOMS) model of code key entry that was part of the tutorial in the CREATE primer “Designing for Older Adults, second edition.”