Organizations are often confronted with the task to identify differences and commonalities between process models but also between the instance traffic that presents how instances have progressed through the model. The use cases range from comparison of process variants in order to identify redundancies and inconsistencies between them to the analysis of instance traffic for the (re)design of models. Visualizations can support users in their analysis tasks, e.g., to see if and how the models and their instance trac have changed. In this paper we present a visualization approach to highlight the differences and commonalities between two models and - if available - their instance traffic.

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