The SME sector plays an extremely important part in modern economy, proving to be the most attractive and tremendous innovative system.
The vital contribution to SME in economic development is a reality unanimously recognised. Showing their economically and socially beneficial effects led to the consideration of the SME sector as a field of strategic interest for the economy. Those small businesses contribute intensely to achieving the fundamental goals to any national economy, becoming the backbone of social-economical progress. According to this, the enterprise is any form of organizing an economic activity, autonomous patrimonially and authorized, according to present legislation to make acts and facts of commerce in order to obtain profit in competitive conditions. In the economical reality the are two types of SMEs: the small traditional enterprise, that, mostly, doesn`t have a long way strategy, but a small marketplace, the process of making goods being inherited from generation to generation; and the modern SMEs that use high technology, are in a continuous search of new markets and, by competitiveness, are looking to maximize the efficiency of their activities. SMEs, especially the traditional ones, have strengths and weaknesses that manifest closely to the involvement of their leaders and their human resources capacities. They are established, usually, on the strength of the courage and talent of their founders. The leaders of these enterprises are genuine entrepreneurs who risk their assets and fortune. This risk is sustained by the following statistic data: in countries with developed economies, 20% of the new SMEs last no more that one year, other 20% last only two years, and 50% don`t last more than five years. Therefore, only 10% of SMEs have the chance to survive more than five years on the market. In their whole, the small and medium-sized enterprises are established in a very various, heterogeneous, flexible, dynamical and adaptable reality. The health of an economy depends on the number and dynamic of SMEs as much as their success on the market. Specific features, such as the market dynamics, customize a certain approach of the companies’ management. They are undertaking the activity on certain coordinates depending on those specific features: reduced size, that confines their potential of growth and their market share, alerting the rate of establishment, but also of bankruptcy of SMEs (caused by the natural selection of companies), the strict specialization, dictated by their reduced capacity and low-rated share on the market. However, those can be considered advantages of a better request knowledge and a higher flexibility in potential difficulties which could appear through entering or outputting on the market. In these conditions, the small and medium-sized enterprises management is influenced by certain factors, such as: the type of SME market (local or regional), the competitive and atomized character of the offer, generated by the large number of companies and their reduced capacity, and the fact that most of the SMEs are micro-enterprises or small enterprises which offer various goods (Lazăr et al., 2006). In an economy of transition, like ours, being in a whole process of consolidation and strengthening the SMEs sector make the environmental factors (very unstable in general) to act through the medium of many and various constraints. Probably the most important are the legislative ones, which materialized in dissipated, changeable and, sometimes, contradictory regulations (tax, in general). Financially, constraints reside in chronical insufficiency of resources and in the difficulties that companies have to deal with in the relation with the banks or insurance associations because of the limited range of specific services and insufficient trained banking staff. Constraints are completed, sadly, by a deplorable state of elements of physical infrastructure and by a poor supplying of some basic services like transport, utilities, urbanism planning and so on. The small and medium-sized enterprises (SMEs) play an essential role in the economy of a country. They represent a source of entrepreneurship abilities, innovation and creation of new jobs.