What is APQP, and what are its five phases?
APQP, Advanced Product Quality Planning, is the structured method automotive suppliers use to plan quality into a new or changed part before mass production. The AIAG manual splits it into five phases: plan and define, product design and development, process design and development, product and process validation, and feedback and corrective action.
Most plants still run APQP from a timing chart in Excel and a folder per customer. Deliverables get marked done because someone said so in a meeting. When the auditor asks who signed off the PFMEA, on what evidence, and whether the customer agreed to gate 3, the answer is a search through email.