Project estimation is important because it is the basis for the allocation and management of the resources associated to a project, when the estimation process is not performed properly, this leads to higher risks and the organizations frequently end up with losses instead of the expected profits. Usually in the projects early phases there is high uncertainty and the information about the project is vague, considering this issue, the existent estimations models (parametric) are not easy to be used because they requires quantitative information instead of subjective information and also...