Type Ii Error
Meaning ~ Probability of accepting an incoming shipment of manufactured goods that exceeds the maximum allowable defect rate, exposing the buyer to assembly line failures.
Rectifying Inspection
Meaning
Quality control procedure combines sample inspection with full lot screening when sample defect counts exceed acceptance thresholds. A rectifying inspection governs rejected production batches, requiring complete sorting to remove or repair defective units before lot release. It applies to internal manufacturing lines and incoming receipt verification where lot rejection is unacceptable due to schedule constraints.
The procedure stops once all non-conforming items in the rejected lot are replaced with conforming parts and the lot passes screening.
Operational Workflow
Inspectors execute standard sampling protocols, and upon lot rejection, route the entire production batch to a screening area. Technicians examine one hundred percent of items, replacing non-conforming parts with verified conforming units. Re-inspected batches enter production without altering downstream assembly schedules.
Cost Recovery
Supply agreements assign total sorting, labor and replacement component costs to the failing supplier during screening operations. Buyers issue debit notes for internal labor hours spent sorting defective vendor lots. Vendor-funded screening protects buyers against inventory write-downs caused by poor supplier quality.
Average Quality Limit
Executing full lot screening on rejected batches improves the overall average outgoing quality level over time. Defective items in failed lots are eliminated, reducing defect rates in delivered material streams. Continuous rectifying screening protects production lines from assembly failures caused by sub-standard components.
Producer Risk
Meaning ~ Statistical probability of rejecting a production lot that actually meets the mutually agreed acceptable quality limit is known as producer risk.