This article presents some of the most relevant concepts in the different relational sociologies proposed, respectively, by Nick Crossley and Pierpaolo Donati, with the aim of finding similarities and differences between the two paradigms. The article shows that the two relational paradigms are quite different. The relational sociology theorized by Crossley inscribes the social reality within an "interaction frame of reference", whereas the relational sociology proposed by Donati suggests a "relational frame of reference". At the methodological level, however, both paradigms allow to study properly the social networks. Although starting from different epistemological perspectives, the two relational sociologies tend to analyze the social reality as a network structure of relations, promoting the use of social network analysis.
Keywords: Interaction, Relation, Structure, Social World, Social Network Analysis