Switching function conceptual model for telecommunication service specification design

The paper proposes the breakdown and modeling of switching functions, intended for telecommunication service specification design, into logical functions that do not depend on implementation into individual systems. In specification design, there are such problems as duplicate definitions of the description elements and service interactions, and it is difficult for the service designer, especially non-expert, to specify all of the services needed to avoid such problems. A switching function conceptual model is proposed to eliminate such problems. The conceptual model can be obtained by generalizing the switching functions essential for forming services and then breaking them down into logical functions.