Studienarbeit STUD-2100

Reimann, Peter: Generating BPEL Processes from a BPEL4Chor Description.
Universität Stuttgart, Fakultät Informatik, Elektrotechnik und Informationstechnik, Studienarbeit Nr. 2100 (2007).
107 Seiten, englisch.
CR-Klassif.H.4.1 (Office Automation)
K.1 (The Computer Industry)
KeywordsBPEL4Chor; BPEL; Web Services; Abbildung; Mapping

The concept of the Service Oriented Architecture describes an abstract mechanism to model business processes in an efficient way based on loosely coupled services. There are two different points of view for modeling business processes. The orchestration defines the process and the logical sequence of the services from the perspective of one single participant. Beside this local aspect, in a choreography we have a global view on all participants and the interactions between them as well as their interaction behavior (e. g. control flow and data dependencies).

In the Web Service Environment the most accepted standard to describe orchestrations is WS-BPEL (or BPEL for short), which has been developed by the Organization for the Advancement of Structured Information Standards (OASIS). It distinguishes between Executable and Abstract Processes. Executable Processes contain all necessary information to execute them (e. g. in a workflow engine), while some information concerning the execution may be hidden in an Abstract Process. As choreography description languages there exist several different approaches. One of them is the BPEL extension BPEL4Chor, which has been developed in a cooperation of the Institute of Architecture of Application Systems at the University of Stuttgart and the Hasso-Plattner-Institute at the University of Potsdam.

Having given one of the two descriptions for a business process, it could be beneficial to transform it into the other one. Transforming the separate BPEL processes into one BPEL4Chor choreography gives us a global view of the interaction between the participants and helps us to analyze and optimize this interaction. The other direction can be used to convert the global and abstract business process description into executable processes and thus provides an implementation of the process.

This work deals with the transformation from BPEL4Chor to BPEL Abstract Processes. It can be seen as a step in the transformation of a business process description into an implementation of the business process.

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Abteilung(en)Universität Stuttgart, Institut für Architektur von Anwendungssystemen
BetreuerKopp, Oliver
Eingabedatum12. September 2007
   Publ. Institut   Publ. Informatik