Schmidt, KarstenDesel, JörgFrank, Ulrich2019-08-262019-08-2620053-88579-404-7https://dl.gi.de/handle/20.500.12116/24829An open workflow net is basically a workflow net extended with a message passing interface. Open workflow nets are adequate models for services or parts of inter-organizational business processes. We investigate the problem of controlla ilit , a natural counterpart of soundness in classical workflow nets (as studied by van der Aalst). We distinguish centralized, distributed, and local controllability and provide solutions to all problems.enText/Conference Paper1617-5468