Demand-Driven Supply Chains: From Push to Pull Manufacturing and Efficient Customer Response In addition to reducing costs, supply chain management systems facilitate efficient customer response, enabling the workings of the business to be driven more by customer demand. (We introduced efficient customer response systems in Chapter 3.) Earlier supply chain management systems were driven by a push-based model (also known as build-to-stock). In a push-based modal, production master schedules are based on forecasts or best guesses of demand for products, and products are “pushed” to customers. With new flows of information made possible by Web-based tools, supply chain management more easily follows a pull-based model. In a pull-based model, also known as a demand-driven or build-to-order model, actual customer orders or purchases trigger events