Abstract
In order to define the enterprise system efficiency, we have started from the system efficiency concept as being an economic category which defines the system quality, its capacity to transform the input into output at the expected level. We are asking now some questions: What is the expected level? What is the indicator that defines the expected level? How does this indicator help us to find the factors involved in its achievement and to analyze the enterprise efficiency? The modern indicators of quantifying the performances at microeconomic level are built using Value Creation concept which insures the desired trend of development. If the enterprise doesn’t generate earnings / profit before interest and taxes (PBIT) more than the capital cost used, it doesn’t create wealth, but it destroys it.