DULUTH, Ga.--(BUSINESS WIRE)--NCR Corporation (NYSE: NCR) continues to lead the world in self-checkout (SCO) technology, shipping more units in 2014 than all other vendors combined for the 5th consecutive year according to research published by strategic research and consulting firm RBR. NCR, the global leader in consumer transaction technologies, saw growth in key markets, including Western Europe, Central and Eastern Europe, and Latin America. According to RBR’s “Global ePOS and Self-Checkout