Providing services has become the most important sector of the economy and the main dynamic factor of the economic competition, within the developed countries economies. In such economies, the sector of economies has assimilated the workforce issued in the other sector, when this over plus of labor force represented simultaneously the cause of its expansion. The services have had a double part: they contribute on both the material entertainment of the labor force, as well as on maintaining the reestablishment of people’s health, to their physical and intellectual recovery, to the development of the individual, as regards the cultural and scientific points of view, and implicitly, to the growth of the living standards. For the time being, one can characterize the economies of the developed countries, as well as of many other countries in progress of development, as services oriented economies; the development and diversification of services has been determined by the need of satisfying diversified social needs. In this way, the part of services aims on becoming proportional to their contribution within the process of economic growth. One can definitely say that between services and the economic growth, a double conditioning takes place, meaning: on one hand, the development of services appears as a consequence of the economic growth, and on the other hand, it grows up the economic growth, thus contributing on diversifying the production and on improving the level of training or qualification of the labor force.