Visually Comparing Process Dynamics with Rhythm-Eye Views

To visualize information about process behavior over time, typically timeline based visualizations are used in contemporary analysis tools. When an overview over a large range of process instances and possible repetitive behavior is to be displayed, however, the timeline projection comes with several limitations. In this article, an alternative to the common timeline projection of process event data is elaborated, which allows to project series of time-related events and regularities therein onto a circular structure. Especially for comparing process rhythms in multiple sets of event data, this visualization comes with advantages over timeline projections and provides more flexibility in configuration. A conceptual elaboration of the approach together with a prototypical implementation is presented in this paper.