IT progress indicators: Sense of progress, subjective sense of time, user preference and the perception of process duration

Users of information technology (IT) often encounter "progress indicators" during their interactions. These graphics (e.g., progress bars) appear on computing screens as users wait for a task to complete. The purpose of progress indicators is to inform users of the progress being made to complete a task. This study employs two theoretical models from psychological research on human waiting to develop specific hypotheses related to the design of progress indicators: the sense-of-progress and the subjective-sense-of-time frameworks. The results of three experiments indicate that progress indicators exhibiting key characteristics from these frameworks influence user experiences. Experiment 1 revealed that participants preferred a linear progress bar to a cycling progress bar. Experiment 2 revealed that participants preferred a video progress indicator to a cycling progress bar, and judged the process duration to be shorter with the video progress indicator. Experiment 3 revealed that the video progress indicator yielded the best user experience.