In relation to the justification of the research and its feasibility, it must be "proven" that the research is feasible, that is, that it can be done, either by the possibilities of the researcher, necessary financial resources, etc. Its convenience and social projection, theoretical and methodological contributions and practical implications must also be justified. That is: "accredit" that human and economic resources will be used to investigate a topic relevant to society, which will later be disseminated and will make a contribution to scientific knowledge. The topic and period to be analyzed must be justified, as well as the relevance of the research based on its social projection.