First Author:   Claudio Djissey Shikida IBMEC-MG claudiods@ibmecmg.br         Second Author: Leonardo Monteiro Monasterio UFPEL leonardo.monasterio@gmail.com         Third Author: Ari Francisco de Araujo Jr. IBMEC-MG arifaj@ibmecmg.br         Fourth Author: Andre Carraro UFPEL andre.carraro@gmail.com         Five Author: Otávio Menezes Damé UFPel otaviodame@gmail.com         http://