This work presents the problems addressed
and the first results obtained by a project aimed at
the preservation of Interactive Music Installations (IMI).
Preservation requires that besides all the necessary components
for the (re)production of a performance, also the
knowledge about these components is kept, so that the
original process can be repeated at any given time. This
work proposes a multilevel approach for the preservation
of IMI. As case studies, the Pinocchio Square (installed in
EXPO 2002) and the Il Caos delle Sfere are considered