C OMPUTER S CIENCE D EPARTMENT M ULTI -D I MENSI ONAL C OMPOSI TI ON B Y O BJECTI VES I N A SPECT -O RI ENTED R EQUI REMENTS A NALYSI S by ANDRÉ GONÇALVES MARQUES Thesis submitted to Faculdade de Ciências e Tecnologia of Universidade Nova de Lisboa in partial fulfilment of the requirements for the degree of Master in Computer Science Supervisor: PhD Ana Moreira Co-Supervisor: PhD João Araújo Monte de Caparica, September 2008