Time is the total of processing and
retention time in the flow of materials and information. Processing time is the manufacturing
time of the parts of the final product.
Retention time is caused by waiting, whether it’s waiting for parts
where one part of the product is in overproduction but the other parts are not
being produced in a synchronized fashion; waiting for information and
approvals; or waiting for the next worker to perform a job, the continuous flow
has been broken. Lead time is also
affected by unnecessary bureaucracy in the form of procedures, policies and
rules and otherwise disconnected flows. The cheapest solution ever, apply the overtime and add non-budgeted cost.