The structural approach, mainly in social science based on the study of interaction among social actors known as social network analysis. The relationships that social network analysts study is usually those that link individual human beings. But important social relationships may link social individuals that are not human, like ants or bees or deer or apes etc. and they may also link actors that are not individuals at all. SNA is multidisciplinary and deals with Sociology, Graph theory, Computer science, Mathematics, Economics, Business management and Development Studies. Network analysts often examine links among groups or organizations even among nation, states and international alliances. The social network approach is grounded in the intuitive notion that the patterning of social ties in which actors are embedded has important consequences for those actors. Network analysts, then, seek to uncover various kinds of patterns and they try to determine the conditions under which those patterns arise and to discover their consequences. But it is only recent approach that have all been integrated into an organized paradigm for research.