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Uma rede social e um conjunto de relacoes entre um numero finito de actores de um sistema social, interconectados por um padrao estrutural especifico. A Analise de Redes Sociais (ARS) visa, assim, compreender as ligacoes entre essas entidades sociais elementares – que sao os actores ou unidades compositas constituidas por subgrupos de actores – e , por outro lado, as implicacoes dessas ligacoes para a estrutura e dinâmica do sistema. Os actores de uma rede social nao sao, necessariamente, individuos ou grupos informais de individuos, mas quaisquer elementos de um sistema social finito interconectados entre si por um qualquer padrao relacional em que haja fluxos informativos verificaveis (interacoes, preferencias ou rejeicoes, associacoes de caracter psicologico, economico ou sociologico, etc.). Neste artigo, o autor apresenta alguns modelos basicos de analise de redes sociais, discutindo as implicacoes do modelo de equilibrio estrutural de Heider e apontando algumas das suas limitacoes metodologicas e epistemologicas. Models of Social Network Analysis and Limitations of Heider’s Structural Equilibrium A social network is a set of relations between a finite number of actors in a social system interconnected by a specific structural pattern. Social Network Analysis (ARS) aims to describe and help to understand the links between those basic social entities, the actors, or composite units formed by subgroups of actors, and the implications of those ties to the structure and dynamics of the system. Actors in a social network are not necessarily individuals or groups of individuals, and they can be any kind of elements of a finite social system interconnected by a relational pattern where information exchanges take place (personal interactions, emotional preferences and rejections, psychological and sociological associations, etc). In this paper the author discusses some basic models of social network analysis and the implications of Heider’s structural balance model, stressing some of its methodological and epistemological shortcomings.

Modelos de análise de redes sociais e limitações do modelo de equilíbrio estrutural de Heider