Under the patronage of His Excellency Eng. Omar Al-Kurdi/ the Jordanian Minister of Communication and Information Technology, the 2005 International Arab Conference on Information Technology (ACIT'2005) was held at Al-Isra Private University, Jordan. The conference included presentations to 92 contributed papers distributed among 24 different Arab and foreign countries, and three state-of-the-art lectures by distinguished Keynote Speakers in the area of information technology. ACIT' 2005 is a refereed scientific conference that act as a forum for scientists, engineers, and practitioners to present their latest research, results, ideas, developments, and applications in all areas of information technology. This conference is considered the official scientific conference for the Colleges of Computer and Information Society, stemming from the Association of Arab Universities. The permanent base of the General Secretariat of ACIT is hosted by Zarqa Private University, Jordan.