Journal of Information & Systems Management Mehmet KARAY, Arif SARI 7 1 2017 ---------------- The contribution introduces modeling distributed workflow processes using extended Petri nets with the new construction which is the interruption routing. Petri nets notation is used for representation of the four main routing constructs as well as for the workflow process. In this paper, we explain and model four main routing construct and the new construct interruption by using extended Petri nets.