GOMS and You CS125a - HCI Alex Feinman. Overview Background of GOMS Application of GOMS A Few Examples Related Work.

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Presentation transcript:

GOMS and You CS125a - HCI Alex Feinman

Overview Background of GOMS Application of GOMS A Few Examples Related Work

Background of GOMS GOMS was first proposed in Card, Moran, and Newell (1983) GOMS

When to use GOMS product design evaluating new features/etc.

Definitions Goals - What the user is trying to accomplish Operators - A (simple) action performed in service of a goal Methods - Sequences of operators and subgoals that accomplish a goal Selection Rules - Decision points when more than one method is applicable

Definitions, part 2 So what’s the difference between methods and operators? –Just a matter of where you wish to stop looking at detail, e.g.: Make text bold Click icon Press mouse button Mash button with finger Move finger slightly …

Varieties of GOMS “Keystroke-level Model (KLM) CMN-GOMS NGOMSL

Sample Analysis