I owe an immense debt of gratitude to my advisor, Prof. Dr. Fernando Berssaneti, for the continuous guidance, support, and encouragement. His deep knowledge, experience, and wisdom were the beacons in my wading through academic research. I thank Prof. Dr. José Quintanilha for his always present advice, wit, and friendship. Prof. Dr. José Curvello Santana, my co-advisor, for the invaluable guidance and support. Prof. Dr. Eduardo Zancul is the preceptor who originally encouraged me with his sapience and friendship. Prof. Dr. Paulo Kaminski, his guidance, wisdom, and generosity were fundamental to my success in the program. Prof. Dr. Celma Ribeiro has furbished my quantitative skills and her cardinal lessons will not be forgotten. Prof. Dr. Denise Dantas showed me the way of the human touch in design. I thank Prof. Dr. Bruno Masiero for the enlightening suggestions. My gratitude to Prof. Dr.