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| creator |
Decker, Gero
| | Kopp, Oliver
| | Leymann, Frank
| | Weske, Matthias
| | date |
2007-07
| | | | description |
The Business Process Execution Language (BPEL) is a language to
orchestrate web services into a single business process. In a
choreography view, several processes are interconnected and their
interaction behavior is described from a global perspective. This
paper shows how BPEL can be extended for defining choreographies.
The proposed extensions (BPEL4Chor) distinguish between three
aspects: (i) participant behavior descriptions, i.e. control flow
dependencies in each participant, (ii) the participant topology,
i.e. the existing participants and their interconnection using
message links and (iii) participant groundings, i.e. concrete
configurations for data formats and port types. As BPEL itself is
used unchanged, the extensions facilitate a seamless integration
between service choreographies and orchestrations. The suitability
of the extensions is validated by assessing their support for the
Service Interaction Patterns.
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