The map is portrayed as a graph with a line showing elements such as customer forecasts, shipments to customers, orders for raw materials on the y-axis, over a period of time shown on the x axis.
Distortion between inventory levels is shown as a result of poor communication and an inability to schedule accurately. The flatter the lines displayed the leaner the system and more accurate the forecast.
Best Practice Procurement: Public and Private Sector Perspectives By Andrew Erridge, Ruth Fee, John McIllroy ↩
Lean Evolution: Lessons from the Workplace By Nick Rich, Ann Esain, Nicola Bateman ↩
Demand Amplification within the supply chain http://supplychain-mechanic.com/?p=5 ↩