This lesson is all about Definition and Stratification in the aspect of Sociology. Stratification is a hierarchy of positions with regard to economic production which influences the social rewards to those in the positions. Primitive communalism characterized by a high degree of sharing and minimal social inequality. Slavery involving great social inequality and the ownership of some persons by others. Caste in which an individual is permanently assigned to a status based on his or her parents\' status. Estate in which peasants are required by law to work land owned by the noble class in exchange for food and protection from outside attacks.