Abstract: A method of comparing process models at least two process models to determine differences and similarities in the at least two process models. The process models include at least two states and a transition. The method includes comparing the state and the transition of the at least two process models, identifying differences in the state and the transition of the at least two process models, and visually representing the at least two process models in a user interface, wherein the differences in the state and the transition of the at least two process models are indicated in a first format different from a second format that indicates similarities in the transition and state of the at least two process models.