“Quality” is the most used word at the start of 21st century. Not because is not frequent, but because it is being requested and everybody tries to treat it in the most convenient way for himself. But, unfortunately or fortunately the “concept of quality” is and was in human’s view from the most ancient times. Once with the modification of the relationships between people, is being developed also the concept of quality, which becomes measurable. This way, the first appreciations of the quality has been made through human’s senses and according to some criteria, like: need, satisfaction and impression degree, which remain till the present moment the most important criteria of consumers’ appreciation. Once with the increase of mass consumption also has been diversified the notions which define the quality. In the present, the quality represents a notion with a large utilization, a fact that makes extremely difficult its definition from scientifically point of view. Disciplines like philosophy, economy and technical ones give different understandings for this term. The process of satisfying customer’s requests supposes a rigorous justification of all the decisions regarding the projection and realization of a product, on the basis of the effectuated market studies. The identified and defined requests through these studies have to be reflected in a corresponding way in the specifications which will serve for products’ realization. Therefore, the specifications don’t represent any criteria of absolute quality, but only necessary means for satisfying customers’ expectations