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What's the difference between APQP and PPAP?

Mari Luke
Oct 25, 2019 11:38:52 AM

What's the difference between PPAP and APQP? Well in part, that depends on which PPAP and APQP we're talking about. PPAP and APQP were originally created by the Automotive Industry Action Group (AIAG). There is an adaptation of PPAP and APQP for the Aerospace and Defense industries created by the Society for Automotive Engineers (SAE). This article is specific to the differences between PPAP and APQP defined by AIAG. 

What's the difference between PPAP and APQP?

PPAP (Production Part Approval Process) is one component of APQP (Advanced Product Quality Planning). 

What is APQP?

Advanced Product Quality Planning (APQP) is a defined process used for  introducing a new product in the market or incorporating changes in the product after its release. A Cross-Functional Team (CFT) composed of engineering, manufacturing, quality, procurement, and distribution professionals performs an APQP to ensure that products meet customer requirements.

5 Phases of APQP

  1. Plan and Define Program
  2. Product Design and Development Verification
  3. Process Design and Development Verification
  4. Product and Process Validation and Production Feedback 
  5. Launch, Assessment & Corrective Action

PPAP is in the 4th phase APQP.

How PPAP affects APQP

If the PPAP results don't meet customer expectations, that usually means the APQP process isn't working properly. The test for both APQP and PPAP is a production trial run. If the finished trial product includes defective parts, the manufacturer has to go over the supply chain and find out where PPAP or APQP went wrong.

Learn more about PPAP and download a free PPAP Excel template

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