The British Standards Institution (BSI) describes BIM Level 2 maturity as a series of domain and collaborative federated models. The models, consisting of both 3D geometrical and non-graphical data, are prepared by different parties during the project life-cycle within the context of a common data environment. This requires an information exchange process which is specific to that project and co-ordinated between various systems and project participants. This provides the platform to improve the co-ordination of the design and provide validate outputs via digital transactions in a structured and reusable form.

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Essentially it is a managed 3D environment with data attached, but created in separate discipline-based models. These separate models are brought together at agreed intervals to form a federated model, but do not lose their identity or integrity. Data may include construction sequencing (4D) and cost (5D) information.

BIM Level 2 maturity is illustrated in the Bew-Richards “BIM Wedge” below it should be noted that Level 2 builds upon Level 1 standards especially BS1192-2007 and its requirement for a common data environment.

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Scottish Government has targeted Level 2 BIM operation on all appropriate public sector projects determined via the SFT BIM Grading Tool. This means that project participants will provide defined outputs via a BIM and that the BIM itself will be managed as a series of self-contained models using proprietary information exchanges between systems. Level 2 BIM standards have been well tested and are seen a world leading suite of documents.

British Standard Institute has produced a suite of standards to support industry in the adoption of BIM Level 2 outline the processes and information management practices required to perform at this maturity level.

The standards for Level 2 consist of:

  • BS 1192:2007 + A2:2016: Collaborative production of architectural, engineering and construction information. Code of practice
  • PAS 1192-2:2013: Specification for information management for the capital/delivery phase of construction projects using building information modelling
  • PAS 1192-3:2014: Specification for information management for the operational phase of assets using building information modelling (BIM)
  • BS 1192-4:2014: Collaborative production of information. Fulfilling employer’s information exchange requirements using COBie. Code of practice
  • PAS 1192-5:2015: Specification for security-minded building information modelling, digital built environments and smart asset management
  • BS 8536-1:2015: Briefing for design and construction. Code of practice for facilities management (Buildings infrastructure)
  • BS 8536-2:2016Briefing for design and construction, Part 2; code of practice for asset management (Linear & geographical infrastructure)BS 8536-2: 2016:

This guidance aligns fully with the British Standards and these documents can be downloaded for free from the BSI websites at the following link.

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For further information in relation to the BIM level 2 standards, please also refer to the useful videos within the resource section of this website