Participative Technologies: An Internet-based environment to access a plural design experience- Knowledge modeling to support user’s requirements formalization.

“Re-shaping artificially the Earth on human needs” implies a very complex industrial system that is performed through a very complex process. It consists of a collective, finalized and plural-constrained process, scheduled by phases, made up by several actors, characterized by the co-presence of numerous and very different (non-) specialist skills. In this paper we define the enhancement path of a web-based collaborative environment – discussed in a previous work – laying upon actual design entities representation an innovative logical level for knowledge formalization. It is presented an example of end-users requirement formalization, aimed at supporting the designers in the process by means of rule-based project suggestions.