kiosk applications, info terminals, software for exhibitions

how to create "nice" and "safe" software for public info terminals and exhibitions with satisfying usability?

software for these special purposes must have a very simple user-interface, mostly applied on touch screens. the system must be secure and free of crashes, maintainance requirements should be reduced to a minimum.

 interactive greeting card ... (only german)
 examples: interactive greeting cards about sustainability (only german) | greeting cards of the austrian minister of arts (only german)

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 references | visualizing | kiosk applications:

"Nachhaltigkeitsgrußkarten"  -  (interactive greeting cards about sustainability - only german)

"Kunstminister-Postkarten"  |   Energiecard, Individuelle Energiebilanzen  |   K.U.L.M. continues  |   K.U.L.M. Projekt Feuer  |