This is a tool developped at INSA de Lyon, by the sysadmins, in order to ease the planning of events, such as an adventure racing, a prom night, or a music festival.
See the data model (no user doc is available at the moment).
The coffee.
The Orga'IF team, at BdE INSA de Lyon. See the commiter list for contacts :-)
You can't, its written in french. However, we use BoUML.