7D BIM

7D BIM is commonly described as the "operational dimension" of BIM: it gathers the facility- and asset-management data — specifications, records, permits, operating and maintenance guides — into the information model so it can be used to run the asset.

Its purpose is operation and maintenance across the asset's life, and it links directly to two normed constructs. It populates the Asset Information Model (AIM) — the asset's information model held in the CDE — and it relies on COBie as the format for handing asset data over to facility management.

The same caveat as 6D applies: 7D is not a standardised term. No single standard defines it; some sources even swap the meanings of 6D and 7D, and beyond 7D (8D, 9D…) definitions diverge further. It is an industry convention — its real value lies in the standardised things it points at, the AIM and COBie, rather than in the number itself. In Italian it is 7D BIM (commonly) or gestione del costruito (asset management).