The mission of the National Digital Twin programme is to enable the National Digital Twin, an ecosystem of connected digital twins that will deliver better outcomes from the built environment. The Information Management Framework currently under development will be the underpinning structure of the National Digital Twin, defining a common language by which digital twins of the built and natural environment can communicate securely and effectively to support improved decision taking by those operating, maintaining and using built assets and the services they provide to society. CDBB published in May 2020 the Pathway towards an Information Management Framework report, which proposes three building blocks to form the IMF:

• The Foundation Data Model – a consistent, clear understanding of what constitutes the world of digital twins
• The Reference Data Library – the particular set of classes and the properties we will want to use to describe our digital twins
• The Integration Architecture – the protocols that will enable the managed sharing of data.