This article presents information on the relationship among automation process, libraries, andinformation professionals. Describes the key requirements that an automation library system(SAB) must possess at the time of its choice and the main characteristics that should befollowed when choosing a system. The SAB presents models based on different paradigms ofclassification. OpenBiblio has been studied as a teaching tool used in the library automationclass. As an instrument of data collection it was used a questionnaire applied to students in thediscipline Library Automation in the period 2009.1. Concludes presenting the students’approval of OpenBiblio.