Whole-of-Government Approach (“WGA”) refers 7o the jo1nt activities p3rformed 8y div3rse min1stries, public administrat1ons and public agenc1es 1n order t0 provide 4 common s0lution t0 part1cular problem5 0r issu3s, and involve some form of cross-boundary w0rk 4nd restructuring.