none4Over the past eighteen years, the ACM Symposium on Applied Computing (SAC) has become a primary forum for applied computer scientists and application developers from around the world to interact and present their work. SAC 2005 is sponsored by the ACM Special Interest Group on Applied Computing (SIGAPP): its proceedings are published by ACM in both printed form and CD-ROM; they are also available on the web through ACM's Digital Library. Visit the SAC 2005 home page for further information: http://www.acm.org/conferences/sac/sac2005/ Symposium Chair: Hisham M. Haddad (Kennesaw State University, Kennesaw, Georgia, USA) Symposium Vice Chair: Lorie M. Liebrock (New Mexico Institute of Mining and Technology, Socorro, NM, USA) ...