defectiveunit
In quality assurance and manufacturing, a defectiveunit is a single product unit that fails to meet defined quality specifications or performance criteria. The term is used to identify items that should not proceed to customers and are subject to disposition within a batch or lot. A defectiveunit is typically detected during incoming inspection, in-process testing, final acceptance testing, or after field use.
Defectiveunits arise from various causes, including design flaws, manufacturing errors, substandard materials, process variability, or handling
Detection and handling involve isolation or quarantine of suspected defectiveunits, followed by diagnostic testing to confirm
Quality metrics track defectiveunits as part of yield and reliability analysis. Key indicators include defect rate,
In practice, the term is used across industries such as electronics, consumer goods, and medical devices, and
See also: defect rate, yield, quality control, reliability engineering, CAPA, traceability.