Mass Service Theory (MST) studies the processes in which In which demands to perform any type of services, and the servicing of these demands occurs.

There are four main areas of research in this analysis: structural, resource, normative and dynamic. Graph and stochastic models, network evolution models, methods involving ontologies, structural and relational models, machine learning methods, graph visualization methods, etc. are used to solve various problems in this field.

The most rapidly developing area of science and technology is telecommunications. Rapid advances in technology have significantly increased the capacity and bandwidth of all types of networks and created many new types of services.