Experimental Validation of Architectural Solutions Giuliana Franceschinis, Eric Alata, João Antunes, Hakem Beitollah, Alysson Neves Bessani, Miguel Correia, Wagner Dantas, Geert Deconinck, Mohamed Kaâniche, Nuno Neves, Vincent Nicomette, Paulo Sousa, Paulo Verissimo DI-FCUL TR–09–8 March 2009 Departamento de Informática Faculdade de Ciências da Universidade de Lisboa Campo Grande, 1749-016 Lisboa Portugal Technical reports are available athttp://www.di.fc.ul.pt/tech-reports. The files are stored in PDF, with the report number as filename. Alternatively, reports are available by post from the above address.