Change related to product or process is defined as the ‘man, material, machine and method used for’ is not as per control plan, work instruction, skill matrix and customer approval.
Change that occurs with prior information to the concerned person and defined action is taken to control the occurrence of non-conformity of product at the change point.
Change that occurs without prior information to the concerned person and defined action is taken to control the occurrence of non-conformity of product at the change point.