Fondation Daniel Langlois has been assembling extensive documentation of Very Nervous System by David Rokeby:
It is a particularly interesting case study for two reasons. Firstly, it offers an unmatched demonstration of the importance of experience in media art. Very Nervous System is essentially an empty room until someone walks in and activates it. It is a work that is brought into being very literally through experience.
Secondly, it is a seminal work in the history of media art, with a lifespan of more than 28 years. Its celebrity and longevity pose some particularly interesting questions about documentation and contextualisation of media artworks over time and through change.
This documentary collection was compiled by Caitlin Jones and Lizzie Muller while the piece was being shown at Ars Electronica 2009 in Linz (Austria):
http://www.fondation-langlois.org/html/e/page.php?NumPage=2186