Scientists and engineers from industry, academia, and major research institutes from 19 countries contributed to the Vienna Conference on Human Computer Interaction (VCHCI '93). This volume contains the proceedings of the conference. Only submissions of the highest scientific quality were accepted as papers, and all contributions address the latest research and application in the human aspects of design and use of computing systems. The papers cover a large field of human computer interaction including design, evaluation, interactive architectures, cognitive models, workplace environment, and HCI application areas. The motto of the conference, Fin de Si cle, affiliates Vienna's intellectual tradition to the field's progressive development at the end of this century.The VCHCI is focused on showing that HCI is more than an area to beautify interaction with computers, provokes disputes among its different contributing fields, does not flee the vital questions forpeople using computers, and provides radically new opportunities for users.