It is necessary for the low voltage distribution networks to develop to meet the operation targets of Smart Grids. Therefore, the evolution phases of low voltage distribution networks are introduced. The operational scenarios are described mainly by the use case studies for each evolution phase, which illustrate the evolving operations between the actors in different domains. Alternatively a use case gives a picture of the system from a certain point of view. This approach gives a base for further studies to improve the low voltage distribution network management. A use case studied thoroughly could indicate the redundancies as well as deficiencies in the system design and the sum of the all use cases is the overall picture of the system. These could be exploited for the development of the communication means and system as well as the management functions and applications.