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In the recent times, interacting with machines has become user-friendly. Moreover, the recent improvements in NUIs are making sure that machines can comprehend human gestures, touch, tone, and thoughts in a much better way. On the other hand, designing for Natural Customer Interfaces is quite challenging as designers have to keep below parameters in mind.

SOUNDS SCI-FI YET TIRING
Minority Report like office sounds really cool, but working with hands upward for a much longer period tire people. URINARY INCONTINENCE should naturally and pleasantly interact with the users without tiring them.

natural user cadre

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CAN'T AFFORD TO SKIP THE ACCESSIBILITY
Some signals might not be possible for users with ailments. Therefore you can't do away with the support for assistive technology like Joysticks or electronic directed devices.