Onuma created BIMXML Standard
for describing building data (sites, buildings, floors, spaces, and
equipment and their attributes) in a simplified spatial building model
(extruded shapes and spaces) for BIM collaboration. More technical
information can be found HERE.
The Onuma BIMXML Converter is a
Java based application that imports BIM IFC files to Onuma. It runs on
PC or Mac, and is available as part of Onuma.