Production systems include methods and procedures to gather and analyze inputs and outputs. Its main elements are inventory, deliveries, lot sizes, setups, vendors, and workers. These factors demonstrate different characteristics in traditional and lean manufacturing systems. For example, in traditional systems, much inventory to compensate for errors is implemented, while minimal inventory for operation is required in lean systems. Few large deliveries are necessary for traditional systems, and many small ones are observed in lean systems.
Large lot sizes and long runs (setups) are in the traditional system, and small lot sizes with short runs (setups) are in lean systems. Finally, lean manufacturing occurs through long-term partnerships (vendors) and workers as the main assets. In the case of traditional manufacturing, workers are needed to complete their work in short-term relationships (vendors). In general, lean systems are effective in solving problems as opportunities through personal and professional development, while traditional systems are based on common managerial processes with clear goals and outcomes.