Quality problems are often discovered during an inspection, but they usually begin much earlier.
They begin when the buyer and supplier have not agreed on what quality means, how it will be checked, who is responsible for testing, or what must be confirmed before production starts.
In this rewind episode of China Manufacturing Decoded, we revisit a classic discussion with Renaud Anjoran about three different types of quality control plans:
- The product quality control plan, which defines inspection, testing, and quality responsibilities
- The process control plan, which helps control quality throughout manufacturing
- The QC plan for a new product, which addresses the additional risks involved before mass production begins
Renaud explains what each plan covers, when it is appropriate, and why buyers should not rely on the supplier to define quality requirements for them.
The episode also covers approved samples, testing equipment, critical components, pilot runs, process controls, and what private-label buyers should document before placing an order.
The core lesson remains highly relevant today: quality control planning should take place before production, not after defective products have already been made.
Listen here
Listen to the episode or watch on YouTube
Podcast sections
- 00:00 Introduction to this rewind episode
- 01:56 What quality control plans are and why they are needed before production
- 04:06 Why there is more than one type of QC plan
- 04:43 Type 1: The product QC plan and contract-related quality terms
- 05:28 Defining testing, inspections, AQL limits, compliance, and responsibilities
- 06:41 What happens if serious issues are found after shipment?
- 07:11 Why even smaller buyers should document quality expectations
- 08:06 Type 2: The process control plan
- 09:04 Mapping production processes and critical steps
- 10:20 Turning the control plan into work instructions and checks
- 11:02 When process control plans become important
- 11:54 Why final inspection alone is often too late
- 12:27 Controlling quality through incoming components and sub-suppliers
- 13:50 How to check whether suppliers can follow process control plans
- 15:03 Type 3: The QC plan for a new product
- 16:27 Quality, reliability, and compliance requirements
- 17:35 Golden samples and approved prototypes
- 18:00 Testing stations, jigs, fixtures, and functional checks
- 19:07 Intended use, reliability expectations, and compliance needs
- 19:52 Component manufacturing, assembly, tooling, and work instructions
- 21:35 Pilot runs and pre-production approvals
- 22:35 Why new products force buyers and suppliers to think harder
- 22:59 Supplier optimism and the “we’ll fix it later” risk
- 24:16 Why quality standards need to be clear and useful
- 25:08 Why buyers often skip proper QC planning
- 26:42 Why defining requirements is the buyer’s job
- 27:40 Which QC plans apply to which buyers and products?
- 28:22 QC planning for all buyers vs larger or higher-risk buyers
- 29:26 Why process control is worth considering for new products
- 30:12 Why every buyer still needs at least a basic quality standard
- 31:12 What off-the-shelf and private-label buyers should focus on
- 33:02 2026 outro and key lesson recap
Further content
- Quality Control Plan: Defining Expectations Before Production
- How To Set Up A Process Control Plan [11 Steps]
- Golden Sample in Manufacturing
- What Is A PP Sample?
- How to set product specifications?
- You NEED to do product qualification BEFORE mass production!
- How Incoming Quality Control Inspections Fit into an Overall Quality System
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