For a while now I've been adding design notes for SDO to the Wiki ( http://wiki.apache.org/ws/Tuscany/TuscanyCpp/DesignNotes) whenever I came across something useful. I've updated that page to describe the re-write that I did a few weeks ago to eliminate a lot of C style macro code. I've also taken a copy of the page and added it to repository at sdo/doc/DesignNotes.htm as a backup copy.
Geoff.
