How assign change order to who creates the item

Hi,

I was looking for a rule that gives a permission to assign all the changes in the item for who created the item. For example the user A created the item XPTO, all the changes or modifications in the item XPTO would be approved by the user A. The user B created the item XPTO1, all the changes or modifications in the item XPTO1 would be approved by the user B.

Is there a way to achieve that?

Regards