Hi Emanuel,
Regarding the software for exhibition/museum design you asked about. My
museum colleague in IT, Peter Dennis has designed a wonderful exhibition
management database EMD which I have used happily and with great success in
managing the design for both entire museums and exhibitions. It is
comprehensive and friendly and will adapt to most projects. You can get him
at this address [log in to unmask] or at his site
http://home.mweb.co.za/lf/lflow
Best regards, Jon Weinberg