The detailed description of the requirements to produce a given item, which includes the operations performed, the order in which they are done, the labor or machine resources required at each operation, and the rate those resources process the item at each operation. It may also include tooling and process or other specifications, and serves as the basis for manufacturing lead time calculations, detailed capacity planning and the cost standards associated with production. Released production orders normally include the standard routing and bill of material, unless modified for a specific order.