How to "Enchant" an Item
<Transmutation1: Open: Gonna make this sword a magic weapon>
<Abjuration: Open: Hold and protect the following alterations applied to this weapon>
<Transmutation2>This blade will now be sharper than mundanely possible; +2 to hit </transmutation2>
<Evocation>Generate Light on this blade
<Enchantment>when it is willed in the attuned possessor's hand</enchantment>
<Enchantment><Divination: Autotrigger><Necromancy: Autotrigger>when within 50' of an undead creature</necromancy></divination></enchantment2>
</evocation>
<Evocation><Necromancy>Generate Radiant energy; 2d6 added damage to undead</necromancy></evocation>
</Abjuration: Seal the protective insulation for alterations applied to this weapon>
</Transmutation1: Seal the alterations to the weapon>
So, yeah, Transmutation is, irrefutably, responsible for applying and sticking magic on an item.
What magics are actually then stuck with/in the "programming" of the Transmutative processes and incantations is dependent on what the item does/is supposed to do.