In human–computer interaction and industrial design, the term “ergonomics” refers to which comprehensive focus area around a workstation and its use? Choose the most accurate description that emphasizes people, tasks, tools, and the surrounding environment.

Introduction / Context:
Ergonomics, also called human factors engineering, studies how people interact with tools, machines, software, and spaces. The goal is to improve safety, comfort, productivity, and user satisfaction by designing workstations, controls, displays, and environments that fit human capabilities and limitations. In computing and industrial settings, ergonomics spans posture, reach, visual displays, input devices, lighting, noise, microclimate, and workflow.

Given Data / Assumptions:

• We are selecting a definition of “ergonomics.”
• Ergonomics concerns both the user and the surrounding environment, not just gadget specifications or costs.
• The best answer should emphasize human-centered design across the workstation and its context.

Concept / Approach:
Proper ergonomic design matches job demands to human abilities. Typical considerations include neutral postures, adjustable chairs and desks, monitor height and distance, glare control, input device placement, cognitive load, error-proofing, and environmental conditions such as ventilation, temperature, and acoustic comfort. The field integrates anatomy, physiology, psychology, and engineering to reduce musculoskeletal strain, fatigue, and errors.

Step-by-Step Solution:
Identify the scope of ergonomics: people + tasks + tools + environment.Compare options: those limited to cost, involvement, or technology miss the human-system fit.Select the option that explicitly names the human aspect of both the workstation and its environment.

Verification / Alternative check:
Authoritative definitions highlight designing for human well-being and overall system performance. This necessarily includes anthropometrics, biomechanics, cognition, and environmental factors around the workstation.

Why Other Options Are Wrong:
Cost–productivity (B) is an economics view, not a definition. Operator involvement level (C) is a management attribute. Technology focus (D) centers on devices, not human fit. “None” (E) fails because a correct, comprehensive definition exists.

Common Pitfalls:
Confusing ergonomics with “just a good chair” or “only posture.” True ergonomics also covers reach, visibility, mental workload, lighting, noise, and workflow design.

Final Answer:
The human aspect of the environment around the workstation as well as the workstation itself.