Social stratification is a relatively permanent ranking of positions in a social system in terms of unequal distinction of power, prestige and wealth. It is a particular form of social inequality. It refers to the presence of distinct social group which are rank one above the other in terms of power, prestige and wealth.
From Marxist perspectives the social stratification exists in the societies, but it is not necessary and inevitable. They claim that societies should not stratify, because it is inequality to all people. Social stratification was constructed by competition, conflicts and conquest. They regard stratification as a divisive rather than an integrative structure. In all stratified societies, there are two major social groups, a ruling class and a working class. The power of the ruling class comes from its ownership and control of the means of production. The ruling class exploits and oppresses the working class. The two classes are not a relationship of equal or symmetrical reciprocity. Instead, it is a relationship of exploiter and exploited, oppressor and oppressed. Finally, the communist society that would replace capitalism would contain no contradictions, no conflicts