Complex sentence: StopLift, Inc., also known as StopLift Checkout Vision Systems, developed the first ever checkout vision system capable of successfully detecting "sweethearting" between cashiers and customers.
Split into simpler sentences: StopLift, Inc., also known as StopLift Checkout Vision Systems, is the company which developed the sytem. StopLift is stated to be first such system cabable of successfully detecting "sweethearting" between cashiers and customers.