The 1st Asian Conference on Intelligent Information and Database Systems (ACIIDS 2009) was held in Dong Hoi City, Vietnam. The conference was organized by Wrocław University of Technology (Poland) in cooperation with Quang Binh University (Vietnam). ACIIDS 2009 started a conference series which constituted a forum of scientific cooperation in the field of intelligent information systems and database systems in Far East. The Head of KMS Division Professor Ngoc Thanh Nguyen, who was born in Quang Binh Province, Vietnam, was the originator of the ACIIDS series.

Above 240 papers from 20 countries were submitted to the conference. 83 best papers were selected for presentation and publication proceedings issued by IEEE Computer Society Press. Keynote speeches were delivered by five Professors: Robert J. Howlett from Brighton Univeristy (UK), Tzung-Pei Hong from National University of Kaohsiung (Taiwan), Kazumi Nakamatsu from University of Hyogo (Japan) as well as by Adam Grzech and Adam Janiak from Wrocław University of Technology.