This document presents a method for service-oriented business modeling that combines the REA and Open-edi frameworks. It formalizes the resulting OeBTO model using SBVR to facilitate model-driven development. The method involves specifying the value chain, business processes, and business events to develop a computation-independent model expressed in SBVR. This enables automated transformation to platform-independent and specific models. Future work includes defining transformation rules and implementing a tool to generate PIMs and PSMs from the SBVR-based CIM.

1. An MDA Method for Service Modeling by Formalizing REA and Open-edi Business Frameworks with SBVRJelenaZdravkovic, IyadZikra, TharakaIlayperumaDepartment of Computer and Systems SciencesStockholm University, Sweden

2. ContextBusiness ModelingService ModelingREAStructureOpen-ediBehaviorOeBTO(REA + Open-edi)PoliciesCIMPIMPSM2

3. ContributionA method for designing a service-centric business modelA classification of the notion of Business Transaction in OeBTO to adapt to different value configurationsAn extension to OeBTO to capture service related notionsReformulating OeBTO using SBVR to increase formalism and facilitate the transformation to PIM3

4. Related TechnologiesBusiness (Ontological) FrameworksREA (Resource-Event-Agent), a framework for business modelingOpen-edi: ISO standard for business transactionsOeBTO (Open-edi Business Transaction Ontology): ISO standardModel Driven DevelopmentModel Driven Architecture (MDA)Semantics of Business Vocabulary and Business Rules (SBVR): an OMG standard for formal business modeling4

5. REACore concepts: Resource, Event, AgentEconomic exchangeExtended REA: three layers of granularityValue ChainBusiness processBusiness event5

6. Open-ediBusiness collaborations from a life-cycle perspectiveISO Open-edi initiative defines five phases in a business collaboration 6

7. OeBTOCombines REA and Open-edi to provide concepts and relationships for modeling business collaborations as they progress7

8. SBVRProvides the necessary vocabulary and rules for modeling business vocabulary and rulesFormally grounded in first-order logicEasily understood by business people8

9. Method for Creating a Three-layered Business Model – Bank Loan ExampleA bank loan involves a bank lending some funds to a customer for a cost, on the condition that the customer will return those funds through regular installments. A debt collector is responsible for collecting the installments9

10. Method – Value Chain SpecificationIdentify the value-adding processes using a suitable value configurationEach process is modeled as a Business Transaction in OeBTO10

11. Method – Business Process SpecificationExplore every business process to elicit the involved Economic Events and Resources, and the Agents exchanging the ResourcesThe identified Economic Exchange gives rise to an Aggregated Service11

12. Method – Business Event SpecificationExpand the Economic Events of the Economic Exchanges over the five Open-edi Business Transaction Phases to find candidate Business Services and Business EventsA Business Service is a standalone service that can be reused in other Aggregated Services12

13. Method – Business Event SpecificationBusiness Services and Events in the negotiation phase give rise to Business Service Rules, which either describe the Business Service Policies or set the Precedence Order among the events and services13

14. Extended OeBTOMethod OverviewValue chain specification

15. Business process specification

16. Business event specification14

17. Conclusion & Future WorkService-oriented business modeling using REA and Open-edi to capture economic exchanges and to get a rich business service portfolioA method for creating a business model (CIM) that is formally expressed in SBVR, to enable its transformation into PIM and PSMFuture WorkDesign transformation rules that can be used to generate a system-level service-oriented model (PIM) and later a Web service model (PSM)Implement a tool that can automatically process the SBVR-based CIM and generate PIM and PSM15

18. Questions?16