by setting the outer boundary between the rest of the environment, a group is formed. Having done this social segregation, the group within the boundaries gets its distinctive social life, social dynamics in which the individual psychological and social variables in the group dynamically interact. This is very important because it involves the social aspect of the TA theory, and from individual, personal intra-psychological level we go to review of the relationships between the group members, in the organizations and systems. On the other hand,in the analysis of the relations, processes and dynamics in the social systems, in addition to the prescribed, formal institutional structure expressed through rules, norms, control, TA adds its strong side, that is the human aspect, the psychological aspect, the motives and the needs that affect relations among the people who are members of that system. In this way TA reaches its social framework, and to the social systems, it upgrades consistent psychological framework for examining the relations among people and how they affect the functioning of the system as a whole.