VIDEO CONFERENCING HUMAN-MACHINE INTERFACE - A FIELD-STUDY
In a field study of an established video conferencing system (VCS), ten months of usage data were collected and analyzed with the hope of determining the interaction between three user interface dimensions: user profile, task domain, and technology. A validated survey instrument was used to collect user demographics and measures of certain user perceptions of the system. The degree of usage and measured perceptions provide a measure of the effectiveness of the VCS interface. Specific attention was placed on the differences in system usage and perceptions between three task groups: operational, tactical, and strategic. This indicates that the effectiveness of a VCS interface may be task dependent. Several significant interactions were found and are reported, including the effect of number of remote groups, group size, optional equipment, and training.
human-machine interface video conferencing systems teleconferencing groupware group decision support systems computer supported cooperative work electronic meeting systems man-machine interface