automated billing system?

Cloud created by:

mark blake
5 August 2017

hello,

The idea is to create an automated supermarket billing system. My mobile App will deduct amount from customers bank account when they pick a product and scan its QR code but at the exit of my shop I will validate customer billing information which will be send through Wi-Fi from my App. The issue is How Am I supposed to corner the one who hasn't authenticated billing information or provided the incorrect billing info.

I didn't find the right solution from the Internet.

-References

-http://www.dreamincode.net/forums/topic/403888-how-to-trap-a-thief-in-a-super-market-using-automated-billing-system/

-Online Marketplace Video

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