BINGCHIANG JENG1,*, DOWMING YEH2, DERON WANG3, SHU-LAN CHU2 AND CHIA-MEI CHEN1
1Department of Information Management
National Sun Yat-sen University
Kaohsiung, 804 Taiwan
2Department of Software Engineering
National Kaohsiung Normal University
Kaohsiung, 802 Taiwan
3Department of Information System
China Steel Corporation
Kaohsiung, 812 Taiwan