In its meeting of 4 May 2009 in Zürich, the working group ISO/TC163/SC1/WG10 has decided to launch the revision process of the ISO 9972:2006. It was also decided that the revision work should be conducted in the harmony with related standards, i.e. the EN 13829, which is currently based on the ISO 9972:1996 with modifications. In the framework of the IEE-ASIEPI project a brainstorming has been initiated on possible improvements to these standards. The present state of discussion is described in this paper.