Modelling method extension for service-oriented business process management

Abstract

The introduction of service-oriented architectures (SOA) in the enterprise context promises many advantages. For example, by composing existing services new capabilities can be provided quickly allowing a fast and agile reaction to changing market conditions. In order to support companies in a successful adoption of SOA, service-orientation must be integrated in their enterprise architecture. Many companies made high investments in the past modelling their enterprise architecture based on different modelling methods. The introduction of SOA is fostered if existing models can be reused and investments are preserved. Therefore, existing modelling methods must be extended by service-oriented concepts. This thesis extends the modelling method ARIS with concepts for service-oriented business process management. It contributes a graphical modelling language, which is tightly integrated with the existing ARIS modelling method. Besides a modelling language, a modelling method also consists of algorithms and applications using the content captured in the models. Therefore, this thesis develops three distinct applications based on the contributed modelling language. First, service discovery enables identifying services needed for business process automation. Second, the automated EPC to BPEL model transformation allows transforming a business process into an executable service orchestration. Third, semantic business process management formalises enterprise models so that they are machine processable. To evaluate the usefulness of the designed modelling language and the developed applications, two empirical case studies are conducted. The first case study evaluates the modelling language together with the applications service discovery and process transformation. The second case study evaluates the application semantic business process management. Both case studies demonstrate the usefulness and relevance of the modelling language as well as its applications. Hence, companies introducing service-oriented concepts can use the extended ARIS modelling method to document and analyse their service-oriented enterprise architecture.

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