9. Data Exchange Specification
A specification for electronic file formats that are used for the exchange of digital data between different BIM software applications, thereby facilitating interoperability. Examples include IFC and COBie (see above). PAS 1192-2 outlines information exchange activities.
10. Federated model
This is, in essence, a combined Building Information Model that has been compiled by amalgamating several different models into one (or importing one model into another; i.e. ‘collaborative’ working). For example, an architect can import a structural engineer’s model data into their spatial model. This is the basis of the UK government’s Level 2 BIM mandate, whereas Level 3 will result in all stakeholders working on one shared model (‘integrated’).
Source: The 20 key BIM terms you need to know | NBS
