1. 4D, 5D, 6D
First there was 2D CAD, then 3D CAD – now there are extra dimensions to refer to the linking of the BIM model with time-, cost- and schedule-related information (although the precise order hasn’t to date been agreed across the whole industry).
2. Asset Information Model (AIM), Building Information Model (BIM), Project Information Model (PIM)
Not only is there the ‘Building’ information model, but the ‘Asset’ information model – which is the name given to the same model post-construction, i.e. supplemented with the data needed to assist in the running of the completed asset. Note that ‘asset’ can also refer to civil engineering and infrastructure work (see also Uniclass, below
Conversely, the ‘Project’ information model is the name given during the design and construction stage, i.e. what’s commonly known as the project among the design team.
