Implementation of the multidimensional schemas integration method ORE

Acknowledgements I would like to thank all the people helped me to make this thesis possible. First of all my thanks go to Petar Jovanovic for all the support he gave me throughout the work, and for great collaboration. Also, I am grateful to my advisor, Alberto Abelló, for believing in me, for his guidance and patience. I would also like to thank Oscar Romero for his useful advice, and all the professors of the UPC who taught me during this master program for giving me necessary knowledge, which not only helped me greatly in the elaboration of this thesis, but also is very important for my professional life. I wish to express my sincere gratitude to my family, especially to my mother who has always supported me and has been there for me. And, finally, thanks to all my friends for encouraging and believing in me.