Question 1

What is APQP and what are its five phases?

Accepted Answer

APQP is the Advanced Product Quality Planning framework developed by the Automotive Industry Action Group (AIAG). It provides a structured method for defining and executing the steps needed to deliver a product that satisfies the customer. APQP has five phases: Phase 1 (Plan and Define Program) covers customer inputs, design goals, reliability targets, and the preliminary bill of materials; Phase 2 (Product Design and Development) covers design FMEA, prototype builds, design verification testing, and engineering drawings; Phase 3 (Process Design and Development) covers process flow, process FMEA, control plan, and measurement system analysis; Phase 4 (Product and Process Validation) covers production trial run, initial process studies, and PPAP submission; Phase 5 (Feedback, Assessment, and Corrective Action) covers ongoing monitoring of production quality and continuous improvement.

Question 2

Do European automotive suppliers need APQP if they already have ISO 9001 or IATF 16949?

Accepted Answer

IATF 16949 requires a product and manufacturing process design approach consistent with APQP methodology. IATF 16949 clause 8.3.2.2 specifically references APQP-style advanced product quality planning as the required approach for automotive product development. ISO 9001 does not require APQP. In practice, US and global automotive OEMs specify APQP in their Customer Specific Requirements (CSRs), and suppliers audited to IATF 16949 are expected to demonstrate APQP process capability. A European supplier with IATF 16949 certification should already have APQP-equivalent processes; whether they use the AIAG APQP manual terminology or equivalent European automotive consortium methodology depends on their certification body and customer CSRs.

Question 3

What is a APQP gate evaluation and who conducts it?

Accepted Answer

An APQP gate evaluation is a formal checkpoint at the end of each APQP phase where the project team and cross-functional stakeholders assess whether the required deliverables for that phase have been completed adequately before proceeding to the next phase. Gate evaluations are typically conducted jointly by the supplier and the customer's Supplier Quality Engineer (SQE). The gate evaluation output is a go/no-go decision for advancing to the next phase. Skipping gate evaluations or advancing with incomplete deliverables is a common source of launch quality problems. US OEMs typically track APQP timing plans as part of supplier launch risk management and may place suppliers on launch watchlists if gate milestones are missed.

Action that should happen	The term should help a buyer or specialist understand a real market requirement, not decorate the page.
What may be unclear	Misuse happens when the term creates false confidence or hides what the buyer actually needs to decide.
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Next step	After the term is clear, go to the related market, answer, or /engagements/ page.

APQP: Advanced Product Quality Planning.

Definition.

Where this matters.

Further on automotive supplier corridors.

German automotive suppliers into US OEM Tier 1.

PPAP.

IATF 16949.

Meaning, misuse, and application.

If APQP gate evaluations are being scoped for a US OEM programme.