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• Safety: Reducing the risk of injury and death
• Performance: Increasing productivity, quality, and efficiency
• Satisfaction: Increasing acceptance, comfort, and well-being

Iterative on three major phases: understand users, create a prototype, and evaluate the prototype.

This has to be done from the early stage of the design. Because even when designers attempt to consider human factors, they often complete the product design first and only then hand off the blueprint or prototype to a human factors expert to evaluate.

Task analysis is a broad term that encompasses many other techniques such as use cases, user stories, and user journeys. All of these techniques focus on understanding

• Why - users’ goals and motivations
• What - the tasks and subtasks to achieve these goals
• When - the ordering and timing of these tasks
• Where - and the location and situation