Left panel compares the Peng et al. (2010) model prediction in the environmental density quartile D4 with our GCLASS cluster SMF measurements, which were already presented in Fig. 5 and Table 3. A separation between the two quenching processes is made. Right panel makes a similar comparison between the model in quartile D1 with the UltraVISTA field data. Note that the relative normalisations of star-forming and quiescent populations are fixed, and that the populations are fitted simultaneously.