The separation of the electron-electron repulsion into a longrange (lr) part and a short-range (sr) part is usually achieved with the error function erf(-µr 12 ) where µ is an interaction-strength parameter. By means of adiabatic connection, one obtains a continuous range of possible DFA models defined by different values of µ ≥ 0. In particular, one obtains Kohn-Sham DFT for µ = 0 and pure wave-function theory (WFT) for µ → ∞; the adiabatic connection from µ = 0 to µ = ∞ thus provides an alternative path to Kohn-Sham DFT.