There are two exchange file types that can be utilised to transfer data between Revit and the VE.
· gbXML schema
· IFC schema:
Green Building XML schema, referred to as “gbXML”, was developed to facilitate the transfer of information from building information models to performance (predominantly energy) analysis tools.
Industry Foundation Class, referred to “IFC”, is a more recent exchange format developed as an agnostic file type to exchange information between multiple hardware devices and software platforms.
IES recommends using the gbXML exchange file format as it has been developed specifically for the exchange with performance analysis tools and more importantly provides a more accurate model at this time.
A gbXML file organises information according to the following hierarchy: Location, Building, Space, Surface and Opening.