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ZQCZero Quality Control
ZQCZero-Quantum Coherence
References in periodicals archive ?
A key architect of the Toyota Production System, Shingo wrote about his discovery and development of mistake-proofing in Zero Quality Control, Source Inspection and the Poka-Yoke System .
The stages led Shingo from traditional statistical quality control methods (1) to initial experiments with poka-yoke (2), encounters with successive- or self-checking, now referred to as next-operator verification (3), the realization that sampling inspections only rationalize inspection procedures (4), his encounter with source inspection that is built into the process (5), the demonstrable ability to achieve zero defects month after month (6), and finally, establishment of Zero Quality Control (7).