Glossary
What Is APQP? Definition and Phases
APQP is a structured, cross-functional method for turning customer requirements into a controlled product and manufacturing process. It guides projects from concept through launch.
APQP stands for Advanced Product Quality Planning. It is a structured, cross-functional method that translates customer requirements into a controlled product and manufacturing process, guiding projects from concept through launch to reduce startup issues, lead time, and quality risk.
APQP Explained in Plain Language
APQP is a phased planning method that coordinates engineering, purchasing, manufacturing, and quality. It uses risk analysis, gated reviews, and documentation to confirm a new part can be built to specification before full production. For example, an automaker planning a new bracket would use APQP to align design, tooling, and inspection steps before launch.
APQP Key Specs and Variants
| Parameter | Typical range | Source |
|---|---|---|
| APQP phases | Commonly five phases; exact structure depends on the governing manual or customer | AIAG APQP manual and AIAG quality guidance |
| Material grades | Not applicable | Engineering drawings and customer specifications |
| Dimensional tolerances | Not defined by APQP | Product drawing and applicable engineering standards |
| Process capability limits | Customer-specific; no universal APQP value verified | Customer requirements and control plan |
How APQP Is Used in Manufacturing
APQP matters most in automotive supply chains, where it integrates sourcing, risk management, change control, and gated reviews. Teams use design and process risk analyses, then perform capability studies where required. Deliverables must stay linked to the Control Plan, which defines production controls, inspection methods, and reactions.
Related Terms
- PPAP
- Control Plan
- FMEA
- IATF 16949
- ISO 9001
- Process capability
- Gated review
Where We Use APQP
Sourcing Repository collects quotes from a vetted supplier network, manages quality and inspection, and delivers parts. APQP thinking shapes how we review supplier readiness for automotive programs. See our automotive parts manufacturing hub or request a quote.
Related terms
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FAQ
Common questions
Who uses APQP?
OEMs, suppliers, subcontractors, and internal cross-functional product-development teams use APQP. It is most common in automotive supply chains.
Is PPAP part of APQP?
PPAP is a related deliverable and approval process within the broader launch-planning framework. APQP is the wider planning method; PPAP is a specific approval submission.
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