Dialogue-based Interface, Hands-free operation, Helpful for people with disabilities, Can be used for voice security (voice recognition), May not recognise commands correctly, Affected by background noise, Can be difficult to set up, Users must know the correct voice commands, Gesture-based Interface, No physical contact needed, Natural and easy to use, Replaces mechanical input devices, Little or no training required, May detect accidental movements, Limited operating range (about 1.5 m), Only recognises certain gestures, May need several attempts to recognise gestures

Dialogue-based vs Gesture-based interface

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