Temporal Conceptual Modelling of Workflows

Business processes require the coordinated execution of simple activities (tasks) by human or automatic executors (agents). Business processes are described in terms of a workflow and their execution is supported by suitable software systems named workflow management systems (WfMS). Several conceptual models for the formal definition of workflows have been defined in the literature. However, a detailed conceptual model enabling the process designer to specify temporal constraints for the activities in a workflow is still lacking.