When the design of a device is based on perceptual signals that people already understand, Psychologist Donald Norman called it a divergent design.

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Psychologist Donald Norman called this type of design "affordance-based design", which involves designing devices based on perceptual signals that make their functions and capabilities immediately apparent and understandable to the user. This design approach promotes usability and reduces the cognitive load required to interact with the device.

When the Design of a Device Is Based on Perceptual