First Article + DUPRO + PSI: A Stage-Gated Quality Plan for New E-Commerce Products
A first article, a During Production Inspection (DUPRO), and a Pre-Shipment Inspection (PSI) become ...
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Why Process Quality Control Beats End-of-Line Sorting for Repeat Orders: A Defect-Escape Cost Model
For a repeat order, the question is not whether final sorting has value. It does: it can keep a know...
New-Supplier Quality Drift at Month 3: Control-Plan Reviews, Golden-Sample Decay, and Process Audits
A new supplier does not become controlled because the first order passed; it becomes controlled only...
When a Passed PSI Is Not Enough: Read Defect Trends, Sample Coverage, and Rework Evidence Before Release
A passed pre-shipment inspection is a sample-based lot decision, not proof that every unit is confor...
Skip-Lot Inspection for Proven Suppliers: Entry Rules, Exit Rules, and Red-Flag Triggers
Skip-lot inspection can cut routine inspection effort, but it should never turn into a standing priv...
Dynamic AQL Levels: Adjust Sampling with Supplier Defect History, Order Value, and Product Risk
Dynamic AQL is useful when it is decided before the inspection visit, written into the buyer’s contr...
