Hierarchical Task Analysis (HTA) is a method used to break down complex tasks into subtasks to understand the structure and sequence of actions required to achieve a goal. It is widely used in human factors and ergonomics to improve system design and user interaction by identifying potential areas for error or inefficiency.

Hierarchical Task Analysis

complex tasks

subtasks

structure and sequence of actions

achieve a goal

Human factors is an interdisciplinary field focused on understanding the interactions between humans and other elements of a system to optimize human well-being and overall system performance. It involves designing systems, products, and processes that accommodate human capabilities and limitations to enhance safety, efficiency, and usability.

human factors

Ergonomics is the science of designing workplaces, products, and systems to fit the people who use them, aiming to optimize human well-being and overall system performance. It involves understanding human capabilities and limitations to create environments that enhance comfort, efficiency, and safety.

ergonomics

System design is the process of defining the architecture, components, modules, interfaces, and data for a system to satisfy specified requirements. It involves a balance between technical feasibility, business needs, and user experience to create scalable, efficient, and maintainable systems.

system design

User interaction refers to the ways in which users engage with a system, interface, or product, focusing on the efficiency, effectiveness, and satisfaction of the user's experience. It encompasses the design, evaluation, and implementation of interactive systems to ensure they meet user needs and expectations, often involving iterative feedback and testing to refine usability and accessibility.

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