While attending the bsI in Düsseldorf, there was a presentation about the IfcProvisionVoids. A very interesting subject which I would like to give feedback if needed.
We have a real project where our team has successfuly communicated via IFC the subject of ProvisionVoids. Because we used the IFC2x3, we communicated these elements as Proxies, but with additional P_Sets to define certain necessary properties. We even have a RuleSet in SolibriModelChecker to control the validity of the Voids (Proxy Elements) if they fit in the cut openings of the structural engineer and the architect
In addition I have generated a BPMN to help understand the processes of exchanging such information.
So, if someone from the team developing this subject (in the BuildingRoom) is interested…please contact me.