Presentation of the EDOC 2009 paper: Business process modeling is a commonly used approach in the development of service-oriented architectures. The previous research on this topic demonstrated that process-oriented models might be too rigid for dynamic adaptations of the business logic. Rule-based approaches are considered an alternative, which offers more flexibility thanks to the declarative nature of rules and their underlying reasoning algorithms. However, modeling a business process through rules is a tedious process for developers in terms of the overall business process comprehension. In this paper, we propose a hybrid solution – a modeling language that integrates both rule- and process-oriented modeling perspectives. The language (Rule-based BPMN –rBPMN) is based on the integration of the Business Process Modeling Notation with the REWERSE Rule Markup Language. In this paper, after introducing rBPMN, we report on the experience in modeling of Service-Oriented Architectures (SOA) from the perspective of message exchange patterns. http://dx.doi.org/10.1109/EDOC.2009.12

1. Milan Milanović 1 and Dragan Gašević 2 1 University of Belgrade, Serbia 2 Athabasca University, Canada Towards a Language for Rule-enhanced Business Process Modeling

13. R2ML Metamodel EDOC 2009

15. EDOC 2009 On a patient information request, if the user is registered and provided valid credentials, retrieve the requested information and notify the user. Otherwise, send a fault message.

16. rBPMN Metamodel EDOC 2009

17. rBPMN metamodel EDOC 2009

24. Related Work

27. Thank You !