Warehouse automation has been around for many years, especially for picking and storage of small and medium packages with Automated Storage and Retrieval Systems (AS/RS). According to Supply Chain Management Review: "Warehouse automation is one of the last areas where long-term costs can be significantly reduced." Most warehouse system look rudimentary compared with the huge, arm-whirling, automated robots present at some storage facilities or on automaker assembly lines. On an assembly line, robotics are being used to repeatedly move selected pieces to build the same final product over and over again. But the challenge for large and industrial equipment supply chain differs from the one for a factory assembly line.