Yes, there are rules.But I would like to point out that I alone have to find PhD Research topic.So no help from University advisors and members.Do you trying to help me.I Wonder myself.Otherwise thank you.
Yes, you have right. I have found PhD advisor.He told me, that is up to me.In another words I have to find by my self Research topics,PhD capture and other factors.
My interests are in robotics and automation.I am doctoral student.I am not involved in any University project because I am self financed citzen.I am researching to achive PhD level.