The specification has been developed in 1999-2013 by the
Model Support Group - MSG - of buildingSMART International Ltd.
Thomas Liebich - MSG Leader
Yoshinobu Adachi, James Forester, Juha Hyvarinen, Stefan Richter, Tim Chipman, Matthias Weise, Jeffrey Wix(†)
Comments, issues or any other feedback should be logged at the buildingSMART issue database