GOMS, KLM, CogTool - Classes

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Limitations of GOMS [Card et al. (1980) ] • applied to skilled users, not to beginners or intermediates. • doesn't account for either learning of the system or its recall after a period of disuse. • doesn't account for errors. • does not address the amount and kind of fatigue • individual differences among users is not accounted for in the model.
KLM (a low-level variant of GOMS) • Keystroke Level Model. • Simple, but accurate. Widely used. • Scope: – skilled users – doing a task error-free. – using a specific method in a UI. • CogTool has this built-in.
Page 1 and 2: Evaluation Types GOMS and KLM CS352
Page 3 and 4: Concepts and Prototypes • Due nex
Page 5 and 6: Where we are in PRICPS: • Predisp
Page 7 and 8: Analytical methods • You follow e
Page 9 and 10: • Goal: “what”. • Method:
Page 11 and 12: GOMS example (cont.) • Method #2:
Page 13: Applications of GOMS • Various ap
Page 17 and 18: • 27 ways to open a file in Windo
Page 19 and 20: KLM/GOMS example 1 (cont.) • Use
Page 21 and 22: Fitts’ Law • Predicts that the
Page 23 and 24: http://cogtool.hcii.cs.cmu.edu/ Som

GOMS, KLM, CogTool - Classes

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