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.
Not right first time = 10^6 X (Quantity of defective units / Total quantity of units supplied)
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.
A defective unit is a unit that does not conform to specification and may be scrapped or reworked.
[edit] Related articles on Designing Buildings
Featured articles and news
One of the most impressive Victorian architects. Book review.
RTPI leader to become new CIOB Chief Executive Officer
Dr Victoria Hills MRTPI, FICE to take over after Caroline Gumble’s departure.
Social and affordable housing, a long term plan for delivery
The “Delivering a Decade of Renewal for Social and Affordable Housing” strategy sets out future path.
A change to adoptive architecture
Effects of global weather warming on architectural detailing, material choice and human interaction.
The proposed publicly owned and backed subsidiary of Homes England, to facilitate new homes.
How big is the problem and what can we do to mitigate the effects?
Overheating guidance and tools for building designers
A number of cool guides to help with the heat.
The UK's Modern Industrial Strategy: A 10 year plan
Previous consultation criticism, current key elements and general support with some persisting reservations.
Building Safety Regulator reforms
New roles, new staff and a new fast track service pave the way for a single construction regulator.
Architectural Technologist CPDs and Communications
CIAT CPD… and how you can do it!
Cooling centres and cool spaces
Managing extreme heat in cities by directing the public to places for heat stress relief and water sources.
Winter gardens: A brief history and warm variations
Extending the season with glass in different forms and terms.
Restoring Great Yarmouth's Winter Gardens
Transforming one of the least sustainable constructions imaginable.
Construction Skills Mission Board launch sector drive
Newly formed government and industry collaboration set strategy for recruiting an additional 100,000 construction workers a year.
New Architects Code comes into effect in September 2025
ARB Architects Code of Conduct and Practice available with ongoing consultation regarding guidance.
Welsh Skills Body (Medr) launches ambitious plan
The new skills body brings together funding and regulation of tertiary education and research for the devolved nation.
Paul Gandy FCIOB announced as next CIOB President
Former Tilbury Douglas CEO takes helm.