1. Issue B.O.M. of current model including new model.
2. Issue ECN & Meeting internal for inform changing point.
3. Check 4M internal & Model Modification Notice.
4. Compare specification parts.
5. Issue Process flow / Process plan.
6. Check data etc. customer drawing no., location, part list, circuit diagram, equivalent parts from Drawing.
7. Issue packing standard.
8. Summary problem request to customer.