By definition, kanban connects material and its movement throughout the
enterprise. What is exceptional about the logic you see in Figures 4 A/B/C is the
simplicity of traffic‐lit pull in governing all material flow across a 2,000-people
site in Mexico. Everyone understands this approach because it is at once highly
visual, attractive, simple, and effective—a common visual pull system across all
valuestreams, end‐to‐end.