Service-Oriented and Cloud Computing by Unknown

Author:Unknown
Language: eng
Format: epub
ISBN: 9783030447694
Publisher: Springer International Publishing

7 Conclusion

In this paper, we presented an approach (i) to specify service compositions in a self-contained manner using imperative workflow models and (ii) to support the automatic deployment of services that are required in the environment. For this, we defined self-contained imperative workflow models, which contain the workflow, and additionally, the deployment models of the required services that are attached to the corresponding activities of the workflow. Hence, the user is no longer responsible for determining the required services for a workflow, transferring the corresponding deployment models into the target environment, initiating the deployment, and configuring the workflow with the service endpoints before executing it. Instead, these time-consuming and error-prone tasks can be automated completely. Further, our approach eases the execution of the workflow in another environment, as all required software artifacts are contained in the self-contained imperative workflow model. We prototypically implemented our approach using the TOSCA standard to model declarative deployment models and BPEL as the workflow language to specify the service compositions.

Acknowledgement

This work was partially funded by the DFG project DiStOPT (252975529), the DFG’s Excellence Initiative project SimTech (390740016), and by the BMWi project Industrial Communication for Factories – IC4F (01MA17008G).

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