At NCR, I designed the end-to-end UI & UX for SCO6 (FastLane SelfServ Checkout Release 6), a self-checkout experience deployed across major retail environments (including Publix and Walmart). I optimized the core flow—from scan → bag → pay—while reducing confusion and attendant interventions through clearer state messaging and step-by-step guidance. The UI supported modern touch interactions (multi-touch) and prominent status indicators (including a “traffic light” metaphor for transaction state), balancing speed with clarity in a real-world, high-throughput setting.