CSQP study materials
CSQP study resources

CSQP case studies

CSQP · Put your knowledge to work in context.

The Certified Supplier Quality Professional (CSQP) is a professional credential for people whose job is to make the supply base reliable: supplier quality engineers, supplier development specialists, sourcing quality managers, and auditors who spend their time at the boundary between a company and its suppliers. It is aimed at practitioners who already understand quality fundamentals and now need to apply them across organizational lines, where the person causing a defect is not on your payroll and the fix has to be negotiated rather than ordered. The CSQP case studies are 5 cases and about 3,602 words.

1

Choosing Between a Certified Incumbent and an Uncertified Challenger for a Safety-Critical Manifold

Your company is launching a safety-critical hydraulic manifold and must select one of two machining suppliers; annual volume is 180,000 units with SOP in 14 weeks. Supplier A is ISO 9001:2015 certified, quoted 18.40 per unit, holds 22 weeks of raw material, and has produced a similar part for another customer at Cpk 1.12 on the critical bore diameter.

734 words, about 4 min
2

Calibration Breakdown and Scope Dispute During a Two-Day Surveillance Audit

An audit team of three is conducting a two-day ISO 9001:2015 surveillance audit at a supplier of sterile-packaged injection-molded components. The audit scope covers molding, assembly, and packaging; design is excluded because the supplier does not design the part.

713 words, about 4 min
3

A Green Scorecard That Hides Line Stoppages and Rescheduled Promise Dates

A molded-components supplier has been green on your monthly scorecard for seven consecutive months: 98.6% OTD and 41 PPM. The scorecard pulls OTD from the supplier's ASN transmission date and PPM only from defects found at your incoming inspection.

704 words, about 4 min
4

Sole-Source Supplier in Financial Distress Demands Exclusivity for Priority Allocation

You are the SQE for a sole-source supplier of a molded power-module housing. The supplier runs one plant, is at 92% of demonstrated capacity, and supplies 100% of your 480,000 units per year.

743 words, about 4 min
5

Unapproved Plating Sub-Tier Change, Warranty Claims, and a Threat to Deprioritize Orders

A strategic supplier of a custom connector substituted a plating sub-supplier without notifying you. The change was made eight months ago; field returns have risen to 2.1% and 37 warranty claims trace to corrosion on the connector pins.

708 words, about 4 min