Existence dependency-based domain modeling for improving.pdfVIP

Existence dependency-based domain modeling for improving stateless process enactment 1,2 1 1 1,2 Raf Haesen , Monique Snoeck , Wilfried Lemahieu , and Stephan Poelmans 1Department of Decision Sciences Information Management, Katholieke Universiteit Leuven, Belgium FirstName.LastName@econ.kuleuven.be 2Faculty of Economics Management, Hogeschool-Universiteit Brussel, Belgium FirstName.LastName@hubrussel.be Abstract state of the process instances as part of its workflow control data [14]. The problem with this stateful approach is that In a process-enabled service oriented architecture, a synchronization problems may occur between the process process engine typically stores the state of the process in- state and the state of business objects that are manipulated stances during enactment. As an alternative, stateless pro- during the execution of the activities. These state inconsis- cess enactment entails that process state is derived from the tencies may arise if the process engine fails during the exe- state of business objects, which are organized in a domain cution of an activity or when a human actor chooses to per- model. The business objects are referred to in pre- and post- form an activity outside control of the workflow engine [5]. conditions of activities, which determine when the activity