| description |
The advantages of the process-based approach to implementing
applications lead to the development of notations for modelling
business processes and languages for enacting them in a process
engine for the purpose of process automation. Currently the Business
Process Modeling Notation (BPMN) is typically used for modelling
business processes and the Business Process Execution Language
(BPEL) is used as the process execution format. Both languages
differ in purpose, expressivity and operational semantics. Recently
it has been shown that there is no complete bi-directional mapping
between BPMN and BPEL and transformations have been defined between
the two formalisms. However, these transformations lead to more
complex models in both, BPEL and BPMN, and enable a roundtrip for
only a limited number of scenarios. In this paper we show how BPEL
processes can be modelled using the graphical aspect of BPMN in
order to facilitate modelling of executable processes using BPMN
while avoiding model transformations.
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