Flexible Workflow Management in Service Oriented Environments

Ever faster changing market conditions require businesses to frequently<br> adapt their business processes and the underlying workflow systems. Serviceoriented<br> architectures are said to deliver this flexibility by loose coupling. In this<br> chapter we provide a survey on realizing flexible workflows on top of service oriented<br> architectures.We show how orchestrations and choreographies may be implemented<br> by state-of-the-art web services technology. The role of agents in realizing<br> workflows among services is discussed. Furthermore, we discuss service provision<br> in dynamic environments, when partners are dynamically bound to the workflow<br> and when changes to the workflow schema happen.