Ueber Flow is a workflow engine and process Validation tool developed by the Department of Business Information Systems - Communications Engineering
Ueber Flow is an workflow engine and process validation tool developed at Johannes Kepler University (JKU) Linz. It is built having a flexible use of process model notations in mind.

Ueber Flow is based on the Actor Model as introduced by Carl Hewitt, Peter Bishop, and Richard Steiger in 1973. The Actor Model is a mathematical model of computation that treats actors as the primitive of computation. A systems behavior is described by the actors, the
messages they can send and receive, and their local state, which can only be modified based on a received message. All processes imported and executed in Ueber Flow are represented using this model of computation. Ueber Flow offers import possibilities for several process model notations/formats.