1. A system where the are different classes of people, Your are born in the systems for life.
2. To be reborn again and again in Hinduism
3. If you do good good things will happen, If you do bad things bad things will happen.
The Caste System is determined by your Ancestor's Status, Reincarnation is a Religious belief, and Karma is the belief that what you put out into the world will come back to you.