How just in time helps maintain high quality just in time systems aim at achieving a high level of conformance
of goods and services with their specifications and reducing waste by eliminating scrap and rework the
just in time system encourages workers to act on their own to ensure the quality of work thus quality
control operates at the source itself.
Whenever a quality problem is identified the production process is stopped and it is continued only
after the problem is solved.
For instance the management at General Motors authorized its workers to discontinue production by pulling
a card if they faced any problem in Japanese.
This practice is called ending even though stopping the production line hampers the firm's production.
The management of General Motors wanted the output to be of high quality by empowering of employees
and making them responsible for quality.
General Motors reduced the number of supervisors by 50 percent.