7. Non-Right First Time (Scrap, Rework and Defects)
A defect is a component which the customer would deem unacceptable to pass the quality standard
•Defects reduce or discourage customer satisfaction
•Defects have to be rectified
•Rectification costs money with regard to time effort and materials
•Defects in the field will lose customers
•Right first time is the key
Caused by:
•Out of control/Incapable processes
•Lack of skill,training & on the job support
•Inaccurate design & engineering
•Machine inaccuracy
Black art processes
Why one of the 7 Wastes ?:
•Adds costs
•It interrupts the scheduled
•It consumes resources
•It creates paper work
•Reduces customer confidence