Noura Razika Bellahsene-Hatem holds the engineer Diploma from the Electronic department, Mouloud Mameri University of Tizi-ouzou, Algeria in 1993; she received magister degree in 1998 from the University of Tizi-ouzou (Algeria). She is an assistant Professor at Bejaia university. She supervises engineers and masters students on their final projects. She is a member in LTII laboratory and actually, she is preparing doctorat degree with the collaboration of the INPG of valence, France. Her main interests are hybrid systems, command and diagnosis, programming languages.