There are also three ‘subsidiary’ theories of change: one focussed on the substantive aims of the HAF, one on the HAF design process, and one focussed on ‘ways of working’.
Mae yna hefyd dair theori newid ‘ategol’ – un yn canolbwyntio ar amcanion sylweddol Y GIE, un ar broses dylunio’r GIE a’r olaf ar y ‘ffyrdd o weithio’.