00530oam 2200205z- 450 9962808279033161-5090-8719-2(CKB)1000000000331757(EXLCZ)99100000000033175720220628c2007uuuu -u- -engAFRICON 2007IEEE1-4244-0986-1 1-4244-0987-X Computer Supported Cooperative Work in Design PROCEEDING996280827903316AFRICON 20072502918UNISA