A unique identifier, typically a serial number, lot number, or build number, is assigned to each machine or product during manufacturing. This identifier allows for traceability and accountability throughout the product lifecycle, from production to maintenance and beyond. For instance, a specific refrigerator might be marked with “SN123456789” while all units manufactured in a specific batch might share the lot number “L20231026A.” This unique designation allows manufacturers to track specific units and address any potential issues related to a particular production run.
This systematic identification offers significant advantages in quality control, inventory management, and customer service. It facilitates targeted product recalls, simplifies warranty claims processing, and enables efficient parts ordering. Historically, such identifiers were often simple sequential numbers. Modern systems, however, can integrate more complex data like manufacturing date, production line, and even specific components used in each unit, enhancing traceability and providing valuable insights for process optimization.