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Color plays a role in ergonomics and anthropometrics by influencing visibility, contrast, and visual comfort. Colors can also affect mood, productivity, and overall user experience in a given environment or design. Proper color choices can help enhance communication, safety, and efficiency in design solutions.
Ergonomics incorporates comfort efficiency and safety in the design of the workplace.
Simple design does make more efficiency. This is the basic designs.
Work analysis is the process of determining the tasks, roles, and responsibilities required for a job. Work design involves structuring these elements in a way that optimizes efficiency, productivity, and employee satisfaction. Both are essential components of human resource management to ensure that employees are equipped to perform their roles effectively.
Vehicle weight, size of the engine, gear ratios, type of fuel, aerodynamic design. There are many many more but this is a good start.
In architecture culture affect design by on its originality.
High structural efficiency is a sign of a strong, relatively light design.
The biggest part is aerodynamics, in my non-engineering experience. The better the aerodynamics, the better the fuel efficiency. There are more factors to this like weight, gearing, etc.
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James Watt
comfort design, functional design, human factors, user-friendly systems, workplace efficiency.