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Formalising adaptation patterns for autonomic ensembles

Cesari, Luca and De Nicola, Rocco and Pugliese, Rosario and Puviani, Mariachiara and Tiezzi, Francesco and Zambonelli, Franco Formalising adaptation patterns for autonomic ensembles. In: Formal aspects of component software: 10th international symposium, FACS 2013, Nanchang, China, October 27-29, 2013, revised selected papers. Lecture notes in computer science (8348). Springer, pp. 100-118. ISBN 978-3-319-07601-0 (2014)

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Autonomic behavior and self-adaptation in software can be supported by several architectural design patterns. In this paper we illustrate how some of the component- and ensemble-level adaptation patterns proposed in the literature can be rendered in SCEL, a formalism devised for modeling autonomic systems. Specifically, we present a compositional approach: first we show how a single generic component is modelled in SCEL, then we show that each pattern is rendered as the (parallel) composition of the SCEL terms corresponding to the involved components (and, possibly, to their environment). Notably, the SCEL terms corresponding to the patterns only differ from each other for the definition of the predicates identifying the targets of attribute-based communication. This enables autonomic ensembles to dynamically change the pattern in use by simply updating components' predicate definitions, as illustrated by means of a case study from the robotics domain.

Item Type: Book Section
Identification Number: 10.1007/978-3-319-07602-7_8
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Research Area: Computer Science and Applications
Depositing User: Users 31 not found.
Date Deposited: 28 Oct 2013 11:52
Last Modified: 06 Apr 2016 09:39
URI: http://eprints.imtlucca.it/id/eprint/1851

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