Downtown Seattle is the home of Amazon.com, Inc. (NASDAQ: AMZN) experimental convenience store called Amazon Go. For the past year, the company has been testing this store to allow customers to walk in, pick up products, and pay without standing in line at a cashier. The idea is to transform the brick and mortar shopping experience by eliminating the checkout line. This will save shoppers’ time and increase convenience by relying on a mobile app and sensing technology to figure out who is purchasing what items.

Upon entering the Amazon Go store, consumers will scan their smartphones while cameras and shelf sensors detect which products have been removed and who removed them. Following the purchase, algorithms will total up the order and bill to their Amazon account.

The Amazon Go store has shown positive experience for individual shoppers but has been slacking to accurately charge groups of people. Engineers have been studying families shopping together as well as figuring out which person to charge when a group shops together.

Already, Amazon opened 13 of their brick and mortar book stores in 7 states. Analysts predict Amazon Go technology to eventually be introduced at Whole Foods locations.