This is precisely why we want more modularity in the ACS (see other threads about this). Currently, you would have to:
- load the new data model, hope it doesn't conflict
- install the tcl/*.tcl files
- install the www/module_name/* files
- install the templates/module_name/* files
- restart your server
- hope for the best
This is actually not so bad. It's much worse if you need to upgrade an existing module where a data model changes...