Comparative study, based on metamodels, of methods for controlling performance - Samia, Aitouche; Djamel, Mouss Mohamed; Sylvie, Ratte; Abdelghafour, Kaanit; Kinza, Mouss; Hayet, Mouss (International Journal of Computer Science Issues (IJCSI)International Journal of Computer Science Issues (IJCSI), 2012)