Abstract
Skyline is an operator that can help users making decisions using a multidimensional data and conflicting criteria. Skyline is based on Pareto dominance relationship, it returns objects that are not dominated by any other object in the database. Recently, the skyline definition was expanded to group decision making to meet complex real life needs encountered in many modern domain applications. We used the groups skyline in our architecture to reinforce the Multi-agent distributed decision support system by integrating the process to the comparison agent. In this paper, we introduce the Skyline operator, Groups skyline and we propose to integrate groups skyline to our internal distributed decision support system architecture.