Social Network Analysis understands social network as a system of interconnected nodes (individual participants) through edges (their relationships). It can be said that the analysis builds on the mathematical graph theory and network analysis methods. The result is a map showing graphically all the elements of the examined social system and their relationships (or selected characteristics of the individual relationships graphically expressed in an appropriate manner). The characteristic may be mutual sympathy or antipathy or regular communication and cooperation, which is important for example for the exchange of knowledge and information.
Social Network Analysis is used in knowledge management.
Sociometry is a special type of social network analysis.