An Introduction to Social Network Analysis
Social network analysis (SNA) is the methodical analysis of social networks . Social network analysis views social relationships in terms of network theory , consisting of nodes (representing individual actors within the network) and ties (which represent relationships between the individuals ) . These networks are often depicted in a social network diagram , where nodes are represented as points and ties are represented as lines. Example of a social network diagram Relationships in a network can either be directional or nondirectional . In a directional relationship, one person is the initiator (or source of the relationship) while the other is the receiver (or destination of the relationship). For example, in the diagram above, node 1269 is the source while node 3777 is the destination. Relationships can also be described as dichotomous or valued . A dichotomous relationship is one where the only information that exists is whether or not a relationship exists