Which study deals with human body dimensions and how they affect design?

• A. Anthropometrics
• B. Ergonomics
• C. CAM
• D. CNC

Answer: (A)

Anthropometrics is the study of human body dimensions and proportions and how they vary among people. Designers use this data to size products, interfaces, and spaces so they fit a wide range of users. It covers measurements like height, arm reach, finger span, and leg length, which determine things such as seat height, control placement, and display sizes. By applying anthropometric data, a product becomes more comfortable, accessible, and safe for most users, reducing strain and improving usability. Ergonomics is the broader practice of fitting systems to people and how they interact with tools and environments; it uses anthropometric data as part of its toolkit but isn’t the study of body dimensions itself. CAM and CNC, meanwhile, are manufacturing technologies, not studies of human measurements.