Human Factors Psychology:The study of how humans interact with products, systems, and environments, with the goal of optimizing these interactions for safety, productivity, and user satisfaction.
Ergonomics:The scientific discipline concerned with understanding the interactions between humans and other elements of a system, and the profession that applies theory, principles, data, and methods to design in order to optimize human well-being and overall system performance.
Workplace Design: The process of creating and arranging the physical and social environment of a workplace to support the needs, abilities, and well-being of the employees, and to promote productivity, efficiency, and job satisfaction.