IFC 4.3 Alignment Based View Definition 1.0 Final Project Plan is now is now out for review by the Standards Committee

Vote closing date: 18 Sep 2025
Report: Link

The Standards Committee is being consulted and invited to provide feedback on the intention to publish the Alignment Based View (AbV) 1.0 of IFC 4.3.2.0 as an official buildingSMART International (bSI) deliverable in its final version. Please follow this link to view the Final Project Plan. The vote closes on 18th September 2025.

Note that, IFC 4.3.2.0, the current ISO standard version of the Industry Foundation Classes, was finalized and published as an international standard ISO 16739-1:2024.

Within IFC 4.3, three implementation levels of Model View Definitions (MVDs) have been identified by buildingSMART International:
• The Reference View (RV), which remains unchanged from the RV for IFC 4, and is already considered final.
• The Design Transfer View (DTV), for which there is currently no significant market demand.
• The Alignment Based View (AbV), which was developed through an open and transparent process and is now ready for formal publication.

The AbV is a mere selection of concept templates; since the (general) usages are already defined in the ISO publication. The use-case or project specific exchanges are published in UCM on top of the base MVDs.
While the selection of the AbV content has been done through industry wide public consultation, formal publication requires that the work be submitted through the official bSI project process, which is now happening. This plan ensures that the AbV 1.0 is published as a final version in accordance with bSI governance procedures and becomes a recognized standard output.