First we stress that sobEDA is fully defined on the top of dispersion-corrected Kohn-Sham DFT (KS-DFT) energy, which is composed of non-interacting electron kinetic energy, classic electrostatic energy, exchange energy (by exchange functional and possibly with some portion of HF exchange), DFT correlation energy (by correlation functional), and dispersion correction energy (via DFT-D3, DFT-D4, VV10 and so on). Note that double-hybrid functionals are not considered in the present work. The definition of physical components of interfragment interaction in sobEDA comes from a simple physical picture of step-by-step formation of wavefunction of the final state of the entire system from wavefunctions of isolated fragments. Fig. portrays full variation of energy of the entire system during the formation procedure, and the definition of sobEDA terms is directly exhibited in the figure. It can be seen that the formation of the final state consists of three stages: