reported by SAP / OpenText during the PlugFest in Basel in keywords, so my interpretation may be off.

Currently there is now way to understand the projection of a property name in the source repository into cmis.
This means that it is not clear what will appear in CMIS if i add a property of name "x" into my source repository.
What's even harder (possibly not possible) is to understand what I will have to go through to make a property
"y" appear on the CMIS layer. This means that an application currently is fully repository vendor dependent
that goes beyond using the properties defined in cmis, even if it only uses application specific properties.