There are many software quality models that allows a process of continuous improvement with its implementation. In this paper some characteristics of the investigated models are exposed, through an information revision, a classification of these models is performed according to the level of the process or product; each model count with some characteristics and a structure that is briefly stated in the written. The different enterprises in order to be immersed on a continuous improvement of their processes have identified the importance of getting the implementation of models that allows to certify an guarantee the quality of their processes and products, some success cases were found for the implementation of the studied models, which allowed the enterprises to position or stand by the improvement of their business process.