The identity conceptual area map and the related terms (e.g. personality and self) and the position of social identity are the first issues in this report. I've reviewed social identity as a modern phenomenon in both the modern and postmodern approaches. Sociologists' identity theories (including the structural and process interactionists' perspectives and particularly Peter Burk identity theory) and the psychologists' theories in the social identity (perspective particularly social identity theory and self categorization theory) are held in the modern approach. Social identity in the traditional perspective is the last part in the modern approach which includes Iranian thinkers in the fields of history, art, and literature. Discursive theory as the unique alternative for the theories in the modern approach is introduced through narratology in the postmodern approach.
It is resulted that the best way is a synthetic theory in the base of Tajfel's social identity theory. Then the triple social identity's components are some how awareness to some common beliefs in the group, attraction in to the group, and commitment to the group. Finally a typology of social identity (family identity, peer group identity, national identity, and religion identity) in four levels (family, peer group, national, and transnational) is discussed.