its a bit like playing patient offense, but specifying which player you want to be focus of the patient offense. an inside player, or outside player.
You may notice that when you play these offenses, the player doesn't actually always shoot lots of inside/outside. I know when ive played Outside Iso, it picks a guard, and a lot of the time, that guard does a whole heap of driving, and shoots inside shots. (because he is best in that game at creating an inside shot).
So even though ive selected Outside Isloation, the number of outside shots is less than 'normal', and more inside shots are taken.
so yer, hope that helps.