A workflow-based social network analysis method using a workflow social network analysis system is provided. A workflow-based social network analysis method comprises the steps of converting a workflow network composed of a plurality of unit tasks into a social network representing a relationship between a plurality of task performers and the unitary tasks, and a Socio matrix Analyzing the social network based on the generated social matrices; and visualizing and displaying business proximity between the plurality of business performers obtained as a result of the analysis.;
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