The subject is structured in part theoretical and part practical, this one with a more personalized treatment. In the theoretical classes the expository work of the teacher is predominant. This work is completed with the presentation of practical cases related to the theoretical topics presented. For the effective use of the subject, it is essential to monitor it continuously, estimating that this is fulfilled with an attendance equal to or greater than 80%. The evaluation of the students will be carried out by evaluating a practical work developed by them once the minimum attendance has been covered. Their involvement in the practical cases discussed and the resolution of the practices carried out in class will also be taken into account. If this practical work is not presented, the assigned grade will be Not Presented.