Proceedings of the Joint Conference of APCHI 2000 (4th Asian Pacific Conference on Human Computer Interaction and ASEAN Ergonomics 2000 (6th S.E. Asian Ergonomics Society Conference), Singapore 27th November-1st December, 165-173 STARTPAGE=165;ENDPAGE=173;TITLE=Proceedings of the Joint Conference of APCHI 2000 (4th Asian Pacific Conference on Human Computer Interaction and ASEAN Ergonomics 2000 (6th S.E. Asian Ergonomics Society Conference), Singapore 27th November-1st December