For this, a virtual learning environment (VLE) is all the different functions associated with training activities. The VAS allows the creation and maintenance of virtual communities by providing the services that each community is identified, and ensuring the integration, enrichment and loyalty of users. Both EVA and how the virtual classroom are customized taking into account the tools chosen and the client’s corporate image: main page layout and icons, layout of documents, etc need. Usually, in a virtual environment of these characteristics, the registered and enrolled student is given a identifying key (username and password), which replaces the traditional student card delivering institutions face, and enabling you to recognized by the system and access the environment and its virtual classrooms. Of course to access it from anywhere and anytime, it must have a computer with Internet access and minimum technical requirements. A Virtual Environment should allow some fundamental questions: – Share views, experiences and know-synchronous or asynchronous, with other students. – Fast search of content that must be scanned. – Database of questions and answers. – Forum news and announcements. – Corrected immediate examination and justification of why it is right or wrong answer marked by the student. – Self-assessment questions with solutions and explanations of them. – Links to recommended websites with a brief explanation of their content. – Annotated Bibliography (part of it, at least the most substantial, must be digitized). – Glossary of terms. – Calendar of events linked to the development of the study. – Publication of events on the theme of the course being conducted. – Updated documentation readily available for students. – Table ongoing support. One of the great advantages of Virtual Learning Environments is identified users (tutors, students and administrators) can communicate with each other at any time, submit jobs and receive results of their exercises.They will also have access to databases of the training center. It should be noted, moreover, to engage in these communications is not necessary coincide in time and space with the selected partner or partners. Overall, the Virtual Learning Environment provides a complete communication network between all its users, enhancing the learning, cooperation, creation of new initiatives, etc.., With very positive results. One of the salient features of virtual learning environments is to create spaces that not only can the training it is also possible to learn, interact, communicate and manage data and business processes, say Albert Sangr and Lourdes Gu rdia (Universitat Oberta de Catalunya) in his work: quality criteria for assessing environments and virtual learning platforms.