This Funnel shapes value stream model is a flowchart method for illustrating, analyzing, and improving the steps mentioned in delivering a product or service. Funnel shapes value stream model, a key component of lean methodology, examines the flow of process steps and information from origin to delivery to the customer. Like other types of flowcharts, it employs a symbol-based system to depict various work activities and information flows. The value stream model with funnel shapes is especially useful for identifying and eliminating waste. From the customer's perspective, items are mapped as adding or not adding value to remember things that do not add value.
