1. Royal Institute of Amazigh Culture (IRCAM),Center of Computer Studies Information and Communication Systems (CEISIC),Rabat,Morocco
2. ENSC, Ibn Tofail University,SETIME Laboratory, Faculty of Science,Kenitra,Morocco
3. Faculty of Science Sana’a University,Department of Information Technology Al-Razi University, Department of Mathematics & Computer,Sana’a,Yemen