Levels of BIM maturity

A metric of the ability of the construction supply chain to operate and exchange information as applied by the UK Government BIS BIM strategy Report.

Source of part text 1)

BIM is being used at a number of different levels of sophistication:

Level 0

Unmanaged CAD, in 2D, with paper (or electronic paper) data exchange.

Level 1

Managed CAD in 2D or 3D format with a collaborative tool providing a common data environment with a standardised approach to data structure and format. Commercial data will be managed by standalone finance and cost management packages with no integration.

Level 2

A managed 3D environment held in separate discipline 'BIM' tools with data attached. Commercial data will be managed by enterprise resource planning software and integrated by proprietary interfaces or bespoke middleware. This level of BIM may utilise 4D construction sequencing and/or 5D cost information. The Government’s BIM Strategy Paper called for the industry to achieve Level 2 BIM by 2016.

With ongoing development of the processes and tools available, and feedback from early adopter projects and other industry experience, the UK Government in 2014 refined its definition of level 2 BIM as the following seven components:

  1. PAS 1192-2:2013 Specification for information management for the capital/delivery phase of construction projects using building information modelling
  2. PAS 1192-3:2014 Specification for information management for the operational phase of assets using building information modelling
  3. BS 1192-4 Collaborative production of information. Part 4: Fulfilling employers information exchange requirements using COBie – Code of practice
  4. GSL (Government Soft Landings)

Level 3

A fully integrated and collaborative process enabled by 'web services' and compliant with emerging Industry Foundation Class (IFC) standards. This level of BIM will utilise 4D construction sequencing, 5D cost information and 6D project lifecycle management information.

The UK Government development to enable Level 3 maturity BIM is reported on in the Digital Built Britain initiative