Groups and clusters are the densest structures in the Universe and are tightly linked with the underlying dark matter (DM) distribution. Thus, they are ideal laboratories for galaxy and cosmological studies and complement the merger and the density field environments.

Because of their importance in galaxy evolution and cosmology, several efforts in the literature have been made to incorporate PDF techniques in the detection and the characterisation of clusters, such as 2TecX (van Breukelen+Clewley09), the Bayesian Cluster Finder (Ascaso+12), or Red-Mapper (Rykoff+14). These methods provide significant advances in the probabilistic use of the information from photometric surveys. Thus, using already developed cluster finders as base, the efforts of the PROFUSE project will focus in the estimation of the cluster properties posteriors.

PHASE: Definition phase.