GOMS is a family of techniques proposed by Card, Moran, and Newell (1983),
for modeling and describing human task performance. GOMS is an acronym that
stands for Goals, Operators, Methods, and Selection Rules, the components of
which are used as the building blocks for a GOMS model. Goals represent the
goals that a user is trying to accomplish, usually specified in a hierarchical
manner. Operators are the set of atomic-level operations with which a user composes
a solution to a goal. Methods represent sequences of operators, grouped together
to accomplish a single goal. Selection Rules are used to decide which method
to use for solving a goal when several are applicable.
The Usability First Glossary's cognitive modeling category is a good resource for more information on GOMS, cognitive modeling, and other psychological principles.
To learn more about GOMS, go to GOMS Model Work.
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