To Alessia Acknowledgements

I wish to thank my advisor, Prof. Gianpaolo Cugola. He has always been present to discuss with me, giving me the best advice to go on. During these years he has been a real guide for me, always able to direct my efforts in the right direction. I really enjoyed working with him and sharing with him my first steps into research. He helped me growing, teaching me how to improve and defend my ideas. Thanks! I cannot forget all my colleagues, and in particular my officemates, Alberto, Alessandro, Andrea, Daniel, Leandro, Liliana, Luca, Marco. I spent the most significant moments of this journey with them. A special thank goes to my old friends, Alfo, Andre, Andre, Cillo, Dado, Pol, Tom, Sammy, Zio, for everything we shared. Thanks to Enzo: I’ve learn so much from him. Last but not least, my biggest thank goes to Alessia and to my family. They have always believed in me and they encouraged me to pursue my dreams. Without their help, I would have never become the person I am.