At the end of the assemblyline, these assembled goods are standardized tested to see if they meet certain criteria before they are moved to the next advanced assemblyline.
Another Toyota innovation is within reach of the assemblyline: stacks of car parts in plastic bins, neatly sorted in the sequence in which they'll be needed for the mix of cars coming down the assemblyline.
When a request from a dealer comes in, the system figures out the availability of parts nearby, the time to resequence the assemblyline and whether the change would unbalance the line by scheduling, for example, too many models loaded with time-consuming options one right after the other.