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State-Based Modeling of Flexible Workflow Executions in Distributed Environments

This paper describes the dynamic behavior of flexible workflow executions in distributed environments. Based on the statechart formalism, we present state transition diagrams of complex and two forms of atomic workflow instances. Two alternatives for the execution of workflows in distributed environments are discussed, namely a hierarchical and a fully distributed approach, the latter of which is used in the context of the WASA2 project on flexible workflow management based on distributed object technology.