Is accuracy rating (Perception + Dex) affecting spell hit chance?

I’m wondering if a mage build needs Perception and Dexterity to land spells more often. How about DD spells? And more importantly how about illusion, charming, psychic attacks, healing or bard skills? For pure Intelligence based, targeted DD spells it might make sense. For psychic, charm and illusion spells (magic schools governed by Int + Charisma) it makes a lot less sense. For summoning or bard spells it makes no sense at all. And it would be a problem for making efficient charisma-based magic builds, as one would need Int + Cha + Perc + Dex to be efficient (with very little health as a result). If Perception and Dex are the basis for hit rates (accuracy) of all types of attacks (melee, archery/ranged and magic), then marksmen and assassins would clearly have a huge advantage, as these are their school-governing attributes anyway. They could then easily stack health (Con) and mana (Int) on top, while the charming mage would have to live with minimum health and carrying capacity. Finally a related question: is evasion (Dex) also affecting spells?