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The Pocket Universal Methods of Design by Bella Martin, Bruce Hanington

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084 Task Analysis

Workflow analysis, including user actions, system response, and environmental context

• Task encompasses any physical actions and mental processes as activities used to achieve goals and any information flows within the system environment.

• Designers typically incorporate a blend of qualitative and quantitative approaches to gain insight into user and task processes.

• The method targets user options, tools, decision points, common mistakes, corrections, inputs/outputs, frequency and importance of tasks, and risks of failure.

• Actions in task decomposition can be organized by categories, such as purpose, cues, objects, method, and options.

• A Hierarchical Task Analysis (HTA) typically results in tree diagrams or flowcharts, ...

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