Regulated education requires that the level of learning acquired in the training process be assessed. In addition, it is convenient for all the agents that participate in the process to have cross-evaluations of the activities carried out.Systems based on computer platforms incorporate assessment mechanisms in a simple and efficient way. In the field of education, the best known mechanism is the rubric-based procedure. The work is reduced to adapting the rubrics to the WhatsApp or Instagram type messaging applications.The work we are doing is aimed at adapting these techniques to modularized teaching within training in the field of STEM (Science, Technology, Engineering and Mathematics).The reason for focusing on this area of work is determined by the training plans that we are proposing at the