Sunday, 28 April 2013 08:55

Chapter 6 - Exception Handling

Due to exceptional or special situations occurring in the real world, a business process cannot be always executed as desired. This chapter deals with anticipated exceptions occurring during the execution of pre-specified process models. These range from activity failures to deadline expirations to unavailable resources. For coping with such anticipated exceptions, exception handlers are typically provided by process designers at build-time. These handlers are automatically invoked by the process-ware information system (PAIS) during run-time when corresponding exceptions occur. This chapter describes selected exception handing patterns frequently applied in PAISs to deal with anticipated exceptions. Moreover, the chapter gives insights into the semantic rollback of process instances, which is especially important when handling semantic activity failures during run-time.

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