The most innovative concept in the nowadays distribution system is that Distributed Energy Resources (DERs) are active subjects of the system with new business opportunities from the active management but with the responsibility to assure a proper work of the system working in coordination with DSOs. The Civil Society, the DSO and DER owner are clearly the stakeholders of the systems, that have contrasting and opposite goals; in the paper, the points of view and the needs of system stakeholders has been simulated. For this reason, MultiObjective approach are used to capture the relationship among players in order to constitute an objective basis to define a regulatory environment with fair incentives for those distribution operators who invest in innovative distribution operation.