A formal process must assign packaging materials to each packing line and control the packing area so that only packaging needed for immediate use is there. Settings on offline printers and changes to date codes may be made only by authorised staff, only correctly printed material may be available at the machines, and checks must reconcile how many labels were used against production.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.