LTS Semantics for Compensation-Based Processes

Abstract

Business processes design is an error-prone task often relying on long-running transactions with compensations. Unambiguous formal semantics and flexible verification tools should be used for early validation of processes. To this aim, we define a small-step semantics for the Sagas calculus according to the so-called "coordinated interruption" policy. We show that it can be tuned via small changes to deal with other compensation policies and discuss possible enhancements.