(some) Kroger chain stores have a similar technology [1] to this to determine how many cashiers are needed at any given time! Neat stuff! [1] http://www.inform

(some) Kroger chain stores have a similar technology [1] to this to determine how many cashiers are needed at any given time! Neat stuff! [1] http://www.informationweek.com/strategic-cio/executive-insights-and-innovation/kroger-solves-top-customer-issue-long-lines/d/d-id/1141541 http://www.informationweek.com/strategic-cio/executive-insig...