Model View Definition (MVD)
As was the case with all previous releases of IFC only a subset of the IFC4 schema will be relevant for the different situations where IFC4 is used. A Model View Definition defines what subset of the schema and what rules/relations are required. Implementation and certification is always against a MVD.
Currently no MVD for IFC4 are already officially released or registered by buildingSMART International however a number of MVD development projects using IFC4 already on its way:
- pre-cast elements
- product libraries