What is the significance of advance notification to the purchaser in source inspection?

Advance notification to the purchaser in source inspection is crucial because it ensures that the purchaser is informed of any upcoming Inspection Test Plan (ITP) hold and witness points. This notification allows the purchaser to adequately prepare for these critical checkpoints during the production or inspection process. By being aware of when these holds and witness points will occur, the purchaser can ensure that they have the appropriate personnel available to witness the inspection and that all necessary documentation is in place. This contributes to better coordination and transparency between the manufacturer and the purchaser, which ultimately helps to uphold quality standards and compliance with specified requirements. The significance of this notification is aligned with industry practices that emphasize the importance of communication in ensuring the successful execution of quality assurance processes.