Transactional behavior of a workflow instance

摘要: Workflow management systems usually interpret a workflow definition rigidly, allowing no deviations during execution However, there are real life situations where users should be allowed to deviate from the prescribed static for various reasons, including lack of information about parameter values and unavailability required resources To flexibilize execution, this paper proposes an exception handling mechanism that allows proceed when otherwise it would have been stopped The proposal is introduced as set extensions OWL-S capture flexibilization In particular, focus on transactional behavior instance, in sense guarantees either all actions executed by instance terminate correctly or they abandoned.