Jul 31 2017
Acceptance Sampling In The Age Of Low PPM Defectives
Today, some automotive parts manufacturers are able to deliver one million consecutive units without a single defective, and pondering quality management practices appropriate for this level of performance is not idle speculation. Of course, it is only achieved by outstanding suppliers using mature processes in mature industries.
You cannot expect it during new product introduction or in high-technology industries where, if your processes are mature, your products are obsolete. While still taught as part of the quality curriculum, acceptance sampling has been criticized by authors like W. E. Deming and is not part of the Lean approach to quality.
For qualified items from suppliers you trust, you accept shipments with no inspection; for new items or suppliers you do not trust, you inspect 100% of incoming units until the situation improves. Let us examine both what the math tells us about this and possible management actions, with the help of 21st century IT.
Dec 15 2020
Nissan’s Quick Response Quality Control (QRQC)
Nissan’s Quick Response Quality Control (QRQC) is a management approach. It’s about organizing the response to quality problems, not about the technical tools used to solve them. It is intended to help detect problems, solve them, and document solutions, thereby growing the skills of the workforce. QRQC neither mandates nor excludes mistake-proofing or any statistical/data science tool.
This is meant to introduce QRQC to those who have not heard of it but it is also a call for practitioners to correct any misperceptions, add details, or share their experience.
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By Michel Baudin • Management • 8 • Tags: Faurecia, Lean Quality, Nissan, QRQC, Quality, Quality Assurance, Valeo