Community
An old thread, but if it is still interessting. The company Norconsult Informasjonssystemer (www.nois.no) have an application to convert PDMS Review files (.rvm files) to inventor. With this application you can convert both graphics, and the PDMS hierarchy into an Inventor model (part/assembly model).
http://www.nois.no/produkter/bim/isy-cad-for-autocad/
Regards,
Bjørn Egil Jenssen