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Last edited 09 Mar 2021
Not right first time
Construction Quality Planning Guide, Draft for Consultation, Published by the Construction Innovation Hub in May 2020, suggests that Not Right First Time (NRFT) refers to: ‘The first measure under the QCD (Quality, Cost and Delivery) approach to improved production performance, it measures a product’s ability to match a specification. It is typically expressed in ‘number of defect parts per million’ with a defective unit defined as one that does not conform to specification and may be scrapped or reworked.’
QCD: measuring manufacturing performance, Published by the Department of Trade and Industry in 2004 suggested that Not Right First Time (NRFT) measures a product’s ability to match a specification and is expressed in number of defect parts per million.
NRFT can be measured internally and externally in the production cycle:
- Internally – defective units identified within the production process.
- Externally – defective units that are identified outside the production process, either from the supplier or at the customer’s site.
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