Production line that does not have abnormality.
Have ability to take action to abnormality by moment.
Can prevent abnormality re -occurrence by root cause countermeasure.
Have activity to find abnormal's root caues but only temporary contermeasure.
able to understand abnormality and take action by hourly
able to understand abnormality and take action by shiftly
able to understand abnormality and take action by daily
Can visualize 1 cycle has finished / Stop when have abnormality.
keep operate even abnormal was occurrence.