[Name of Tool] Supermarkets and VMI [Description] Auto-replenish of Vendor managed inventory (VMI) using production kanbans or other methods. Supermarkets may be replenished several times per day. Water striders often used to replenish shadow-boards for assembly operations. [Who should use it?] 
Advanced lean for larger enterprises, or complex operations with multiple suppliers. High added value activities see quick return. intensive to set up. Months or years typical.