The APQP, or Advanced Product Quality Planning, is a proven approach for developing a new product to be made in high volume and under strict quality, timing, and cost requirements.
It was developed in the automotive industry (virtually all tier-1 suppliers of car parts have to implement this approach.) It has also been adopted in other settings with similarly comprehensive requirements, with great success (companies who don’t require such a detailed plan may choose one that more closely adheres to the ISO 9001 and ISO 10005 definitions of a Quality Assurance Plan instead).
Adding some structure to the design & development phase
I have heard many people tell me “design and development is not linear, so it is hard to formalize”. That’s very true, but there are ways to manage it as a series of process steps.
In ISO 9001:2015, clause 8.3 reads “The organization shall establish, implement and maintain a design and development process that is appropriate to ensure the subsequent provision of products and services.” And it defines requirements for:
- Management of changes
The APQP follows the same structured approach but goes more in-depth (remember, it is called the ‘advanced’ product quality planning).
Large car manufacturers have formalized a set of process steps they expect their suppliers to follow. It was developed by the AIAG, an industry group serving mostly the needs of GM, Ford, and Chrysler.
In short, the objective is to maximize the likelihood that the new product will fulfil the customer’s requirements. In other words, no bad surprises! If one part can’t be used and an entire automotive plan has to stop, the cost is close to 50,000 USD a minute…
What activities and milestones make up the Advanced Product Quality Planning (APQP)?
It is usually summarized as follows:
The 6 activities can be outlined as below:
- 1.1 Inputs: customer suggestions/requirements, historical information about similar products, the company’s objectives…
- 1.2 Outputs: a detailed plan that includes goals for design and for quality/reliability, preliminary process information, and preliminary product features.
2. Product design & development
- 2.1 Input: step 1.2.
- 2.2 Outputs: design FMEA, DFM analysis, drawings and first prototypes, material specifications, reviews and verifications, requirements for testing equipment….
3. Process design & development
- 3.1 Input: steps 1.2 and 2.2.
- 3.2 Outputs: process flow chart, process FMEA, process instructions, quality system review and preliminary control plan…
4. Product & process validation
- 4.1 Input: steps 1.2, 2,2, and 3.2.
- 4.2 Outputs: a pilot production run that went through the process steps outlined above and went through testing & inspection, and detailed evaluation of the results.
5 and 6. Mass production + feedback, corrective actions…
5.1 Input: steps 1.2, 2,2, 3.2, and 4.2.
5.2 Outputs: application of what was learned in step 4 to get closer to the goals of step 1. The objective is to be ready for production launch.
I walk you through the entire APQP process in this video:
The customer side of APQP: the PPAP
Not all manufacturers want to do all the engineering required to comply with the APQP approach. The temptation to skip steps and go straight into production (at higher risk) can be quite strong…
How does a customer monitor whether a supplier applies the APQP? They simply request and approve the deliverables (e.g. outputs) of the APQP — that is commonly called PPAP (Production Part Approval Process).
There is a manual for it (again, from the AIAG group in North America). And, just like APQP, that same approach is used in many industries.
An example: measurement system analysis (MSA)
Without a good measurement system, all data are subject to suspicion. Different inspectors and/or gauges find different values. The supplier and their customer can’t see eye to eye when they discuss quality data. Not good.
When we do a PPAP review for a buyer, here are the questions we generally look at when it comes to MSA:
- Was MSA applied on all critical measurement processes?
- Were sampling size and data quantity sufficient? How were they defined?
- Was the resolution of the device considered?
- Was repeatability considered?
- Was reproducibility considered?
- Was gage R&R calculated?
- When was the latest MSA study held? Is it done in a regular manner?
- Are the %R&R and %PT <10%?
- Is the number of distinct categories >5?
- Was the result of the gage R&R compared with the control plan gages?
This sounds like a lot of heavy statistics, but some very common software (e.g. Minitab) handles this well.
And yet, when we look at the way tier-1 car part makers do their APQP in China, we often find a lot of data that were just made up. It can be hard for the customer to detect all those situations. In the end, it is the manufacturer that suffers through customer complaints, chargebacks, and so on…
APQP is considered a “core tool”
From my observations, all tier-1 suppliers to American and European carmakers have to be IATF 16949 certified. That standard requires the use of APQP. There is no way around it.
So, the question is, how about your new product development process?
I believe most importers who develop custom-made products could get a lot of benefit from such a structured approach. Naturally it requires to work closely with the manufacturer and to understand their processes, and that can be difficult. But following this discipline only increases the chances of success.
Have you set up an approach that makes sense for your needs (with the right level of preventive systems)? Has it allowed you to reduce quality and timing issues significantly once the goods get into mass production?
Editor’s note: This post was originally published in 2015 and has been updated and republished with new content.
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