We overcome the inefficiencies of inspection through the use of automatic devices called Poka Yoke, these seek to do three things
1.Not accept a defect for the process
2.Not Create a Defect
3.Not Allow a Defect to be passed to the next process.
They do this in a number of different ways but can be categorized as being either;
1.Control : They take physical action to prevent a defect
2.Warning : They sound an alarm or light up to tell us a mistake has been made.