Episode 330 of China Manufacturing Decoded features hosts Adrian and Renaud from the Sofeast Group discussing why quality control should not start when finished products come off the production line. By then, many key decisions have already been made: product requirements, supplier selection, component choices, tooling, process setup, inspection methods, and testing plans. In this episode, Adrian and Renaud explain what quality control should look like during the NPI process, before mass production begins. They discuss why final inspection is only one part of the quality picture, how clear product requirements reduce confusion, why supplier and component qualification matter, and how process controls, inspection points, test methods, jigs, fixtures, and pilot runs help prevent defects before they become expensive production problems. You’ll learn why quality needs to be built into the product and manufacturing process from the start, rather than being inspected in at the end. The main takeaway: final inspection may catch problems, but it does not prevent them. Good NPI quality control reduces risk earlier, when changes are easier and cheaper to make. Podcast sections 00:00:11 Episode 330 begins: QC during NPI before mass production 00:01:14 Why many companies treat quality control as an end-of-line activity 00:02:08 Why final inspection is reactive, not preventive 00:04:01 How to build quality into the product and process earlier 00:04:44 Why everything in product development can affect quality 00:06:08 Product requirements as the foundation of NPI quality control 00:07:09 Supplier qualification, design risks, inspection, and testing 00:08:29 Quality gates, validation, reliability, compliance, and performance 00:09:36 Manufacturing process controls and why they need to be planned 00:12:02 Using AI to help document product requirements 00:13:00 Examples of turning user needs into measurable specifications 00:15:41 Cosmetic standards, boundary samples, and critical measurements 00:18:21 Qualifying suppliers, components, and materials 00:19:53 Turning requirements into inspection and testing processes 00:22:18 Applying QC controls during prototype and pilot batches 00:23:04 Work instructions, jigs, fixtures, and process risk reviews 00:25:05 Mistake proofing example: preventing drilling errors 00:26:28 Eliminating risks where possible, controlling them where not 00:27:12 Why prevention is stronger than end-of-line inspection 00:28:04 Final takeaway: quality-forward NPI reduces production risk Related content NPI process guide NPI deliverables review service from Sofeast 7 must-do NPI tasks before a successful launch Why skipping part qualification in NPI will cause problems 3 key process improvement tools Pilot run best practices DFM and Industrialization support from Agilian You NEED to do product qualification BEFORE mass production! Get in touch with us Connect with us on LinkedIn Contact us via Sofeast's contact page Subscribe to our YouTube channel Prefer Facebook? Check us out on FB