Abstract
Exploiting global interconnectedness in distributed systems, we want autonomic components to form teams to collaborate for some global goal. These teams have to cope with heterogeneity of participants, dynamic composition, and adaptation. Helena advocates a modeling approach centered around the notion of roles which components can adopt to take part in task-oriented teams called ensembles. By playing roles, the components dynamically change their behavior according to their responsibilities in the task. In this paper, we report on the experiences of using Helena in modeling and developing a voluntary peer-2-peer cloud computing platform. We found that the design with roles and ensembles provides a reasonable abstraction of our case study. The model is well-structured, easy to understand and helps to identify and eliminate collaboration mismatches early in the development.
This work has been partially sponsored by the EU project ASCENS, 257414.
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Klarl, A., Mayer, P., Hennicker, R. (2014). Helena@Work: Modeling the Science Cloud Platform. In: Margaria, T., Steffen, B. (eds) Leveraging Applications of Formal Methods, Verification and Validation. Technologies for Mastering Change. ISoLA 2014. Lecture Notes in Computer Science, vol 8802. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-45234-9_8
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