Comparison between observational parameters of MWGCs and simulation results. Red dots represent the observations, blue dots the observations limited to in situ MWGCs and R_g smaller than 7 kpc, and black diamonds the simulations. Left panel: relation between cluster mass and R_h. Right panel: relation between cluster mass and N₂/N_tot ratio. Please note that the anticorrelation relationship between cluster mass and N₂/N_tot ratio observed in MOCCA models is purely artificial and is related to the choice of initial models. The nTF models and those initially located at large galactocentric distances cannot reproduce the observed parameters of MWGCs.