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SQ-66
Supplier Qualification Guide

Qualify the supplier before the supplier qualifies the part.

Supplier qualification is the process of confirming that a manufacturer can consistently meet technical, quality, capacity, delivery, documentation, communication, and commercial requirements before production is awarded.

Supplier Qualification / Decision DiagramSQ-66 / BUYER MODEL
01 / Decision Structure

Make the sourcing decision from evidence, not convenience.

Technical capability, quality systems, capacity, cost, communication, lead time, risk, documentation, and supplier stability should be evaluated together.

02 / Buyer Criteria

Price is one input inside a larger production decision.

The strongest buying process clarifies requirements first, compares suppliers consistently, exposes hidden costs, and identifies risks before production begins.

CRIT-A

Capability Match

Confirm that the supplier's equipment, process knowledge, materials, tolerance range, part size, and secondary operations match the actual requirement.

CRIT-B

Quality Discipline

Inspection equipment, calibration, nonconformance control, traceability, corrective action, document control, and training help reveal process maturity.

CRIT-C

Capacity & Resilience

Available machine time, staffing, bottlenecks, maintenance, backup equipment, sub-suppliers, and surge capacity affect delivery risk.

CRIT-D

Approval Path

Samples, prototypes, first articles, pilot runs, capability studies, and documentation can expose problems before volume production begins.

03 / Technical Visual

Each buyer guide gets its own decision model.

This batch uses distinct visuals for qualification, manufacturer selection, RFQs, and total cost analysis.

Decision inputs.

Technical fit, quality, cost, capacity, risk, timing, and communication all shape the sourcing decision.

Decision controls.

Defined requirements, comparable quotes, documented assumptions, and clear approval criteria make supplier decisions more repeatable.

04 / External References

Additional manufacturing research resources.

These links support broader buyer research across manufacturing processes and supplier categories.

EXT-01
IQS Directory

Additional industrial supplier discovery across manufacturing categories.

Open Resource →
EXT-02
IQS Directory Articles

Additional industrial process and sourcing articles.

Open Resource →
EXT-03
Contract Manufacturers

Additional contract manufacturing supplier research.

Open Resource →
Buyer Principle

Supplier qualification should reduce uncertainty before purchase orders scale. Capability, quality, capacity, documentation, communication, resilience, and trial production all matter.