An example of a Pull system can be a local coffee shop which makes coffees/hot beverages to customer orders. The hot beverage manufacturing process does not commence until an order is received from a customer. So the customer generates a signal when he purchases a cup of coffee, effectively pulling materials through the coffee making system, thus called a pull system. If there are no orders coffees aren't being made to stock up on "finished coffees". This would be impractical and very costly for the coffee shop.