Nowadays the structural changes in Europe require a transition from the old re-distributive welfare to a new kind of welfare, called productive welfare, where the user cooperates to produce the new services. Firstly we have the citizen as passive user of services (around the ’50 and the ’60), or he/her appears as simple consumer (in the ’80 and the’90) and in the last period he/her becomes a co-producer: this is the effect of the co-production process.