Notes 2-6

Notes 2-6 - Heirarchical Task Analysis Know the terms goal...

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Heirarchical Task Analysis Know the terms- goal, operation, decomposition, plan, stop rule GOMS – know what it means Know the types of GOMS Be aware of the assumptions you make if by using GOMS i.e. what are the situations you – differences between proposed designs elementary perceptual and … components (Cognitive Band) Why would you use GOMS? HTA - Based on functional units rather than behavioral or psychological units of task performance - TOTE- Test-Operate-Test-Exit - Task o Identifying the goal of the task rather than activities that make up the task - Goal o A specific state of affairs o Goal State *Key Term Event Physically observable value o Active or latent Currently pursued Activation conditions dependent on completing - Operation o Goal(s) o Conditions under which the goal is activated o Actions that contribute to goal attainment
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o Conditions indicating goal attainment o Operations may be nested within other operations - Hierarchy of Operations o Decomposition
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Notes 2-6 - Heirarchical Task Analysis Know the terms goal...

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