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Q Terms

QCD / Quality, Cost, Delivery

QCD is the acronym for the broad categorization of metrics and KPIs in continuous improvement. The acronym QCD stands for: Quality, Cost, Delivery

Quality

In Lean, quality is often considered to be “good parts”. That is important because quality parts are a necessary condition to create flow.

Quality Circles

Quality Circles are a continuous improvement tool that was popularized in the US in the 1980s and 90’s but have since faded from common use.

Quality, Cost, Delivery

See: QCD

Queue Time

Queue time is a very specific form of waiting, one of the traditional seven wastes. It occurs when a person or item is in line behind something else and is waiting for the same resource.

Queueing Theory

Lines are a fact of life. They result from a company trying to keep the costs of providing its services in check in the face of fluctuations in customer demand.