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Centre for Digital Built Britain completed its five-year mission and closed its doors at the end of September 2022

This website remains as a legacy of the achievements of our five-year foundational journey towards a digital built Britain

Launched by HM Treasury in July 2018, the CDBB’s National Digital Twin Programme was set up to deliver key recommendations of the National Infrastructure Commission 2017 “Data for the Public Good Report”: 

  • to steer the successful development and adoption of the Information Management Frameworkfor the built environment.
  • to create an ecosystem of connected digital twins – a national digital twin– which opens the opportunity to release value for society, the economy, business and the environment. 

The NDT programme builds on the UK BIM framework’s foundation of collaborative information management. The benefits of BIM and smart infrastructure to owners, operators and user have shown that the value of data when it is shared. 

The NDT programme is working with future users and early adopters of digital twins to develop an information management framework to connect digital twins to deliver benefit to all. The creation of the framework forms an integral part of HM Government’s modern Industrial Strategy and Construction Sector Deal.

The Gemini Principles and the National Digital Twin

The Gemini Principles are an integral part of the the development of a National Digital Twin. Watch our new animation to see how the Gemini Principles will help towards its creation.  

What are the Gemini Principles?

Gemini Principles[Download the report]

As an industry we are beginning to understand that data needs to be valued, managed effectively and shared securely. We now need a common set of definitions and principles that can be adopted across the sector to underpin the development of the national digital twin. The Digital Framework Task Group is bringing together stakeholders from government, industry and academia to build a consensus on these definitions and values, which it has called the Gemini Principles.

The Gemini Principles report was published by the Centre for Digital Built Britain in December 2018 to begin enabling alignment on the approach to information management across the built environment, as establishing agreed definitions and principles from the outset will make it easier to share data in the future.

These principles are effectively the conscience of the information management framework and the national digital twin. To ensure that these two initiatives are – and remain – for the public good, they need strong founding values to guide them.

Enshrined in these values is the notion that all digital twins must have clear purpose, must be trustworthy and must function effectively. All the Gemini Principles flow from this. They are deliberately simple, but their implications are far-reaching and challenging. They are descriptive of intent, but agnostic on solutions, to encourage innovation and development over time.

The Gemini Principles will continue to evolve as the National Digital Twin evolves and we seek ongoing input into their development from across the sector.

Gemini Principles Image2

Find out more about the Gemini Principles.